Yes! RE4 on Wii demonstrated how to do motion controls right!
I absolutely LOVE RE4 on Wii and it demonstrated that a pointer function has its uses. It makes perfect sense: a game with aiming in it stands to benefit from a peripheral that can aim.
The only problem I have with Resident Evil 4 on the Wii is that the motion controls are actually too accurate. Getting headshots and knocking knives out of the air becomes trivial. Don't think that I could have unlocked the handcannon without them though.
You totally ignored all my other points. And motion controls were never a gimmick, they are still alive and well today and are used by many, Even the switch has kept motion controls as well as the dualshock 4.
The only other point I saw was that you could use it for porn, and a claim about how "the vast portion" of people think it's how games should be played. Considering that had no evidence to back it up, I ignored it.
You're basically just talking about how you like VR, and if you do, great, but you didn't really define any criteria for a gimmick or explain how VR does or does not fit. As far as I can tell from your post, a gimmick is something that people don't like that isn't useful for porn.