Because he's unimaginative and silly looking? He has no real motivation? He's a god modding dick?
All of that. I just don't like him. What is he, really? A straight up clone of Godzilla that's evil. He's a friggin' cliche evil twin.
My advice on how to make a redesign is to take what he is, a mix of Bio and Goji DNA and space crystals, and make that more interesting than just a red and blue color swap with some crystals thrown in haphazardly. I can almost guarantee that what you come up with will be more interesting.