I don't see why the HD Rumble wouldn't work as an option for those who want it in standard games, it might be more suited for some games than others, in some it might assist the gameplay in others it might immerse you further in the expirience. I'd personally love HD Rumble in MK8D. BoTW, Splatoon 2, Bomberman R or Skyrim (SE), but I can see why other people might not.
The feature has a lot of potential outside of VR, though they'd be perfect for VR; but 720p VR wouldn't be a fun expirience, and I doubt Nintendo would go down with putting in a second screen in the headset, to avoid raising costs.
HD Rumble and the advanced haptic feedback on the touchscreen are both features I hope developers take advantage of, and Nintendo alongside them.







