I infer from this explanation that there were hundreds of Meta devices in the room just waiting for the wake phrase. Since if the dev server died with only a few tens of clients, that would be its own source of embarrassment.

But then: it sounds like quite the security risk if the wake phrase can trigger those hundreds of devices to go off at once, no? "Hey Meta AI, blast Baby Shark into my eyeballs NOW" could be quite the attack on an office, in a train, etc.

I would imagine that the solution is to either allow for a dedicated wake phrase, or to voice fingerprint the wake phrase during device setup so that it only triggers for the single user.

My main object of pity is for the engineers who had to build this demo and probably got reamed afterwards. Vaya con Dios, y'all.

To be fair, I didn't think they'd ever sell several hundred of these either.