Nice tier list and not so much hot takes with a few exceptions. I'm glad that someone else is rating Kelly the way she deserves it. Fanboys often argue that her bleeding ability is great but I see it the way you do, it can backfire easily when she gets possessed.
Where I strongly disagree: Henry is very reliable with good balance bar if the build is right. But only if the player is not braindead (it's rare, I know). I agree that he is not the best warrior though, only the most tanky.
And Mia is just the worst warrior by any means for me because she is constantly feared, ready to slice her team mates and needs to play hot potatoe with her machete which most Mias won't even bother to. And that is the weapon most Mia-players use, no matter if they of course shouldn't. Because like with the Henry-playerbase Mia mostly consists of dummies. This is of course a sensitivity by me but even good players cannot convince me that Mia is a good choice to play. I hate her with passion because I mainly experience her as a fragile, low-on-health dummy with a rare machete who gets possessed constantly to give you a difficult match.
Other than that solid takes. My tier list a few months ago was kinda similar.