I've never seen the knives come out for Bioshock Infinite the way I have for any other game.
That's what happens when a games gets perfect 10s and is repeatedly compared to being as good as a movie, as emotional and powerful as a movie, on equal footing with that holy medium.
I do agree its not as good, gameplay wise, as the first one. The gameplay in first one, just worked much better, imo. But that wasn't the problem, what was criticized was mostly a single narrative mistep, that perhaps wasn't a mistep at all.
Specifically making the rebel leader out to be as bad as the tyrants, that came across as commentary to many people, and pissed them off. But, even if you disagree with this notion, that doesn't make the game or even that single instance in the narrative bad. It's a wonderful and engrossing creative expression by a game creator, you don't have to agree with every idea it presents, just as you don't agree with every idea presented by movies, like Back to the Future ( shamelessly pro materialism ), or every book. Those pieces of art can still be amazing, even if they are flawed or if you disagree with their commentary.
I did find the gameplay lacking compared to the first one, and didn't get that sense of badassness of upgrades and new weapons and powers, but my god, Infinite was so incredibly immersive and beautiful. Unprecedentedly so. And it also has the single best animated character in all of games, till now, imo. Such a stunning game. Too bad the gameplay didn't quite live up.
But this later legacy of being slightly disappointing is mostly just backlash from culture critics resentful that this game was being compared to movies and being held up as proof that games are also legitimate art. It's this backlash rather than the game itself that has created its legacy.