4chan is just full of idiots that just repeat what others said even though they don't really know what they're talking about. A lot of the negative comments that came from 2ch about Mahoyo after its release are made by the antis, and even some of them have pointed that those guys would always say the same about any new product from a popular company. Currently they're really discussing the game instead of those earlier posts that basically said the same thing over and over again even before the game release e.g "full price, no ero, no voice etc. etc."
Nothing substantial that indicates the game bombed or anything, just 2ch acting like retard, and 4chan acting like the bigger retard, just like always.
It didn't live up to the hype and expectations people have of it, sure. But what do you expect after all those delays and relatively short story for all those painful waits? But that doesn't mean they reached a consensus that it's a bad game or something.
I swear, 4chan always complains about the Japanese conformism and shit, but they're just the same.