Nier Automata is Taro's best selling game, Platinum's name helped. There is no doubt about it.
The first Bayonetta sold more than 1 million and if Bayonetta 2 with its high scores got released on ps4, xbox one and pc it would have outsold the first one easily.
The first Bayonetta sold better on ps3 than on xbox 360 despite the fact that the xbox version was better.
Platinum's best titles has the misfortune not to get released on Sony's consoles, that's why they don't sell very well.
Taro saved platinum because they needed a big hit after the cancellation of Scalebound, it was a dark time for platinum and I'm happy that Automata helped.