Yeah, I don't think I should have used the term villainous. But her motivations seemed kind of MURKY to me. A couple of more episodes could have fleshed this out though. I just liked AGNES more because her personality was so mysterious, enigmatic and most of all FUNNY. Agatha was sort of funny at the beginning of her battle with Wanda in Episode 9, but then she became an exposition machine after the laser show began in earnest. I think the writers were forced to make her that way in order to transition Wanda into the Multiverse of Madness. Killing Sparky is pretty bad, but I could easily see Marvel Studios making him out to be a "fake" magical construct as well. That's why I felt Vision didn't really "die" in the show. He wasn't really "alive" to begin with.
I felt bad for Josh Stamberg. He even asked "What can we do to keep Hayward from just being mustache twirly?" He wasn't a total villain because in Episode 4 he seemed like a good dude. But after that it was just downhill from there for him. I hope he gets redeemed later somehow. I liked Stamberg and I felt he did the best he could with his role.