Why does everyone hate morph?

Whenever I see some posts on here about morph it’s always about how annoying morph is in the amazing series. I’ve recently started watching and forgive me as I’m only on season 2 episode 13 but he seems like a chill guy (apart from the fact he’s under sinisters control)

I always see people hate him because he turned evil or because of his laugh. I think the laugh isn’t so annoying because although he does it a lot, he doesn’t do it every millisecond like people say he does. If anything Miss Martian’s ‘hello megan!’ Is worse. In terms of him turning evil, I’d be pretty pissed off too if my entire team left me to die

If there’s another reason ppl hate morph pls enlighten me and I don’t mind spoilers :) I haven’t read any morph comics I will admit so my morph knowledge is limited to the amazing series and ‘97