I admit it's an exaggeration but still, what a childish response. Critics have stated that there is yet another disappointing villain. Basic lackluster story arc and quite a letdown of a final showdown. I haven't seen it yet so I'm not completely informed and I will be making my own opinion when I see it, but those three components have been quite regular in some mcu films. Not to mention the fact that marvel films are well known to hold the audiences hand instead of letting them figure things out for themselves like adults.
If people are let down by the story, villain, and final fight, idk what they were expecting. Every villain can't be a Thanos or a Darkseid. BvS tried pulling that shit by throwing in Doomsday way too early and you see where that got them.
I agree their villains are usually too weak, but it's necessary to keep the story going to lead up to Thanos. It's not about the destination, it's about the journey.