To me, the only clear answer is that Nintendo made their games VR only. As a multiplatform gamer, most of the other things you listed would not really phase me because it is only changing where they would be played. I would just simply invest in those platforms as I saw fit.
Nintendo going VR only however would drastically change their games at the core, and not in a good way. The occasional VR project is bot a problem, but not every game is a fit for VR.