It could have had a killer app: games. Most VR headsets suck in one way or another, Apple could make one that's actually nice to use.
Sadly, for some bizarre reason Apple still don't understand games. They even have pretty good GPUs now and they're still not making an Apple TV Pro to compete with the PS5.
Even just the Vision could've been announced along with a couple exclusives, but instead they have an offhand mention of Arcade.
Could they really not have given some units to some game devs and tell them to come up with some cool ideas?
This thing just feels incredibly rushed. It's like Apple felt left out of the all the AI hype the last couple months, so they were forced to show this thing before it was really ready.
Kojima is sufficiently famous and well liked to bootstrap a gaming ecosystem, though. They could've gone further and announced an Apple TV Pro, a decent controller, Vision non-Pro (cheaper headset that requires an M1 Mac or Apple TV Pro) and one full Kojima VR game as an exclusive. That could've been enough to start competing with Microsoft and Sony for console games.
VR is a peripheral, not a console. Very few people would choose a VR Magic game over Magic the gathering arena.
Given enough time and adoption I believe it will happen