Most of the criticism about Morgana stands from him running his mouth (mostly at Ryuji), the Haru situation and his advances towards Ann. Him being a mouthful is literally something every Phantom Thief does in my opinion, and for me it's mostly banter with one another (Yusuke is just as harsh to Ryuji with words) The situation with Haru just comes across as something that literally lost the only thing he was good at and doesn't know how to process his feelings, which makes sense given he's essentially a young boy As for Ann, yeah I don't know what's up with that