Expanding on some of what I said in the tags of that post about Thimble and her perspective on Thjazi.
I agree, because it is obvious, that Thimble knows more about who Thjazi was and what he did than any of our other PCs. She spent more time in his company and was more privy to his business than anyone else. She knows that he's done many bad or difficult or questionable things, including whatever was going on with Bolaire, and she's fine with all of it, because the both of them (she and Thjazi) live in the same/similar realm(s) of moral grayness as characters.
What is important and distinct to me about her perspective is that I don't think that Thimble lets her knowledge that Thjazi was morally gray interrupt her other, secondary belief that he was also, fundamentally, a good guy; this is a bias that she has because she loved him. It would be difficult to get her to say plainly that Thjazi did some fucked up shit without her immediately jumping into being defensive about it. I think that she thinks Thjazi was a Good Person, and all the questionable stuff he/they did is subsumed as acceptable underneath the good outcomes it was all for.
Quotes that make me think this are:
(from Broken Wing) LAURA: Better than me, probably. Thjazi was great. He didn't keep me: he was my partner. We were equals. Can you believe that? Equals.
Thjazi was great. Not only in the sense of great to hang out with; great, morally, in that he made her his equal, a great man, a good man.
(To Julien, in The Snipping of Shears) LAURA: I come up close. He didn't deserve it, you know. All the shit you gave him.
We know little enough of this whole situation to judge very well what "all the shit" was and how one might deserve it. But "he didn't deserve it" as an assertion is a defense of, either, Thjazi's innocence or justifiedness, probably in this case mostly pre-rebellion.
LAURA: Yeah. Isn't it strange that this long after everything that they would put a target on his back again?
TRAVIS: It was my understanding that he had fallen in, found a place of use in Dol-Makjar.
LAURA: Well, I mean, yeah, I mean, for the most part. We did some... questionable things, but yeah, I mean, he was--
LAURA: He was useful to so many different people and loved.
She wants to focus on the being useful and loved, not the questionable things. He was loved, especially, by her.
More or less what I gather from these, and from Laura's general performance as Thimble, is that while she's obviously aware of Thjazi's questionable behavior (and willing to talk about it outright!), she also tends to try and find a way to frame him as positively as possible. She loved him. She's biased. She presents him in a positive light when she can, which is almost always.
Is this a wild, unreasonable bias that means we should discount everything she says? No, of course not. She's on one side of a spectrum regarding how she interprets unclear behavior on Thjazi's part (very "I'm sure he had good reasons!"), while Bolaire, Julien, and sometimes Murray for some reason are on the other end (very "I'm sure it was nefarious," "maybe he's trying to become a god-king with this ritual" [for some reason, again, Murray? god-king??]), and others like Hal and Thaisha have been more moderate.
I do think that Thimble idealizes and idolizes Thjazi, in a manner similar to the ways that Julien and Bolaire demonize him. But that idealization isn't in the form of acting like he acted right all the time, or of being blissfully ignorant of what he did - it's in the form of knowing the kinds of things he did, accepting them because she's also a complex character morally, and then also insisting primarily on his greatness, usefulness, belovedness, undeservingness of Julien's shit, because she loves him and is biased towards him. Which, again, isn't meant to be a denigration of her perspective - I'm trying to point out the difference between, "she's totally fine with everything he did, and therefore doesn't need to justify or defend Thjazi," and "she accepts what he did and helped, but still feels the need to insist that even his questionable work is less important than all of the ways he was great."
In future episodes, the main things I'm looking forward to on this topic are hearing Bolaire tell Thimble about his grievances, and Thimble finding out about Thjazi's hand in closing the doors to Faerie. Bolaire seems to think he can pull Thimble over to his side with his story - I don't think he can in the slightest. She'll probably try to be sympathetic to Bolaire, but fundamentally, she thinks that even if Thjazi was mean to Bolaire, he did it because he had to or didn't know Bolaire was a person or he was trying to protect Hal, and therefore Thjazi was justified (we've never seen her think otherwise) and she's not mad. This is reinforced by the fact that Bolaire isn't actually under Thjazi's thumb anymore, and so it's all old news that he needs to get over to focus on the present.
Faerie, I think, will be a different story, especially given that he kept it a secret from her. Is the accidental suffering of all of the fey in Araman plus House Royce and its peoples worth the freedom of the souls in the River? Maybe! I'm not here to judge that, and it's a convoluted risk assessment. I'm not saying it was a unilateral, evil, unjustified fuckup, but I am saying that it was a big, big fuckup. Thjazi really hurt her with that, and then he lied! For at least two reasons - operational security, sure, but also because I think he didn't want to admit to Thimble that he'd hurt her and her family. He was ashamed, despite his noble intentions with the River Gavzidra, like a kid who broke a vase and tries to hide the pieces. I genuinely don't know how Thimble is going to react to that news, and I'm dying to find out.