I mean, we all agree Gordon in s8 would’ve improved not just the flair but the actual logical structure (and suspicion) of s8, but he would also be fire in s6. He’s so “for the greater good-” driven, you can pretty much put him anywhere, and when you’ve exhausted that, plop his sister in there, and you get even more. For example, Gordon and his sister as B plot to Amara season 11, anyone?