I want a refund on the meat sack

Wrong

I find Maul overrated and annoying as a character, and I also think it's pretty ridiculous to try to write a midquel story about a character who is narratively incapable of any kind of development in any direction.

I presume this is why they had to introduce this secondary main character that is the Jedi padawan who's being corrupted, so they actually HAD a character who was capable of being developed in any direction and a story that could actually be told since that wasn't going to happen with Maul. But this is literally a story we've seen happen with Maul like three different times depending on how you count Savage, Ahsoka, and Ezra, so it's not particularly original as a Maul story. And this is not the first "Jedi padawan who gets corrupted after Order 66" story we've gotten, so it's not original in that aspect, either.

"Why didn't anyone give Anakin therapy?"

"Anakin fell because he never got any therapy."

Anakin got 13 years of therapy, 10 which were spent with a dedicated therapist solely assigned to helping him manage his emotions and behavior so he could find a healthy path through life. But Anakin believed that he was the one person in the world who didn't need any therapy because he was better than everyone else who needed therapy and they were just jealous that he didn't need therapy when they tried to suggest that maybe he did in fact need therapy like the rest of them.

And then Anakin proceeded to murder all of the therapists and their children and spent at least two more decades continuing to hunt down any surviving therapists and anyone left who had the ability to BECOME a therapist, so while he was no longer receiving therapy at this point, that's pretty exclusively his own fault.

And even if there WERE some therapists still left alive, they weren't exactly jumping to offer him therapy anymore and it's pretty hard to blame them for that after he murdered them all.

So he mostly just ended up super lucky that a few of those surviving therapists ended up training his son to be a therapist and that his son was able to get through to him when no one else could specifically because this time it was his flesh and blood telling him these things and he was more willing to listen to his own flesh and blood.

But even if that WEREN'T true, you can literally find the Jedi's teachings are things in lists of things real life therapists will tell you to do to be more mentally healthy. Things like mindfulness and non-attachment in particular are 100% ALREADY IN THERAPY and they are the two things the Jedi tend to discuss the most in films.