Nier released on steam day one. Far far from being a PS4 exclusive.
You are also ignoring Tales of Berseria, Uncharted, Gravity 2, Hatsune Miku, Digimon, Nioh, YS origin, Danganronpa, Senran, kingdom heart 1.5,2.5, Dragon Quest Heroes 2
Well you get the point. But yes I'm sure you are going to ignore each and everyone of those because "Nier is better".
Who knew a game releasing what 16 months later (that was never exclusive) could make someone so.. desperate.
Most of them are on PC as well so what's your point? I'm a PS4 only owner anyway, so it's water off a ducks back.
Point is, Nier was easily one of the reasons to get a PS4 over Xbox, now it isn't. If this had been Danganronpa or some of that other shit I haven't heard of that you listed, no one would care.