I think that the problem is that people actually enjoy being upset about things, it goes beyond FFXIV too you can see it everywhere outrage culture is a very real thing and I think a lot of people don't even realize they're a part of it.
That said millions of people play the game, a handful of the same people going out of their way to be upset about something at all times is ultimately irrelevant.

It's the same names all the time, having the same negative circlejerk and having the absolute least charitable takes imaginable about the devs every single time.