I've also heard the idea of glass was about demoing AND getting the public conversation started about wearables so that when they have a product ready, the dialogue has been running.
That's even worse! Now the dialog centers around creepy voyeurism. Google has single-handedly salted the market so nobody can enter it. It will take a decade at least before somebody tries again.
After the Glass fiasco, I'll be thinking twice before buying/taking Google's variant of FUD seriously. That was a waste of over 1.5K for me. Too bad there is no accountability (oh wait ... all the Google fans would just say I should have known it was unproven tech and I was an explorer .. blah blah blah).
I haven't been dissuaded from buying all unproven tech gear thankfully! Preordered the Apple Watch (as I have had wonderful experiences with the iPad on launch day and the iPhone) ... very satisfied with it.
I'm on the fence about HoloLens. While I have full faith in Apple and zero in Google, Microsoft is in the middle. The tech is extremely compelling but I Microsoft is known for incremental improvements .. I'd rather not get stuck with gen 1/demo hardware when a lot better stuff may be around the corner.
I see his point though, just like the Oculus has reignited interest in VR simply by being under development, Glass could have done the same thing for wearables. There's maybe a dozen consumer level VR projects out in the world right now, and the same could have been said for Glass.