Huh, that's surprising! I mostly heard good thing about ML when it was new, and almost nothing recently, except for the occasional "this moment was fun" gifset getting reblogged across my dash.

And I get why SU had a big hatedom, it tackled a bunch of serious social-justice themes -- racism, homophobia, PTSD, imperialism, abusive relationships. No matter how thoughtfully you handle those, it's catnip for a certain kind of wanker in general, and it gave viewers excuses to say "any criticism I have, no matter how minor or subjective, means it's Doing Material Harm To An Oppressed And Marginalized Community."

ML is just...so much less ambitious on that front? I don't want that to sound like a dig at the show -- it knows what it's trying to do, overall does it well, and the result is fun and engaging to watch. But it is trying to do *less*, to the point where I don't know what the haters would latch onto.

(...do I even want to know? It's going to be something monumentally stupid, isn't it.)