I would say the exact opposite. Wasting dev time specifically for a VR exclusive is just dumb, with VR2 even more so. No VR-exclusive I played would not have been possible as a VR-too game. For VR1 having it in mind was probably not possible. But VR2 should have been in all games in some capacity. At very least a 3D cinema mode. Or using the VR-controllers without the headset, ie. like Move games- bring back motion gaming! You could even assign a button to make the camera move with a hand gesture, kinda simulating some head movement. Or whatever. But VR design does imho not really exist if you are clever.
Edit: I remember the Soma dev said something like the only thing stopping their game to get a VR patch was that some effects were done as a 2D layer so would not be easy to translate to true 3D, required for VR. Seemingly this work was too much to do. But exactly those decisions should be made at the beginning. Include VR in the whole thought process and minor things might need to change, but you get a lot more suitable games immediately, as when limiting yourself to some VR-only BS. Sony would have to do it themselves though and also ask (with money) everyone to do the same. Just hoping on support was not enough.
The aim with only exclusives is failing- since bascially only GT and RE are VR-too and are praised- so pretending that it is the right strategy is from a business perspective just delusional. VR-too might not have helped much. Pointless what if scenario, but imho the cheapest way to get more games, interest and sales on the failing platform would have been broad VR-too support. Even before PC-support, or VR1 ports, or untethered, or cheaper price.