If their leadership has an itch they'll scratch it until it's raw.
Did Meta patiently wait until exaggerated glass frames were viable in the market? Or did they get lucky?
Or did they have some Machiavellian plot to steer this fashion for years and pave the way for their product..? ;-)
I think wearable tech is awesome and was interested in this (I was much more interested in the earlier pendant projectors though) but the fact that you're constantly reminding people they're being recorded without their consent is just a big issue. The meta glasses themselves might suffer a similar fate if hacks to disable the LED become commonplace. Much like Sony's (I think?) nightvision cameras if stuff like this gets abused by creeps it will isolate you to use it yourself even for perfectly reasonable intentions.
It's very much a Prisoner's Dilemma. Legacy search and the open Internet was an equilibrium that only existed while the majority of people co-operated. Once you allow an individual actor the ability to create large chunks of the Internet, it dies. Your only option is to be that individual actor.