Let's try this again;
The benefit of using two Move controllers is that you can have two independent points of tracking. Say, a gun game that lets you shoot in two different directions with each hand.
That's really cool, and opens up a lot of possibilities for interesting games. But now a game can't be developed solely around those new mechanics, because it's tethered to the Dualshock. So at some point the games will be limited, because they always need to develop around the possibility that the player only has one tracking point.
That doesn't mean awesome games won't come out, but since it's hobbling one of the core facets of immersive VR, yes it will absolutely limit the kinds of games we see.
There's no way to know how many games requiring two Move controllers we would have ever seen. Probably not that many, considering the fractured audience it caters to. But still, there will absolutely be ports of at least some Vive games that PSVR will never see now.