I could see commentary on the affectation being impression-y at times...but saying he can't sing? C'mon now.
Having seen him up close and singing live he is phenomenal. Yes he does adapt a certain twang but it's part of the charm. I feel like sometimes these reviews deliberately try to get a rise out of fans.
I know I might get crucified but I kind of wonder what he could do with his voice, his songwriting skills and a slight electronic production. I‘d be wet.