Regardless of the exploit, I wonder if there's a market for similar looking smartglasses that let you do whatever you want. Some competition in the space would be good for inviting regulation.
The non-displaying kind is just Bluetooth headsets with cameras and some hype. There are plenty of cheap knockoffs for those.
The display kind is full of exotic parts, materials and manufacturing techniques. Building those is not a product design problem but funding and engineering problems.
I haven't even seen a market for these, much less something that takes more work. It's probably hobby level at best to a very select hacker-focused crowd, but even they have historically been anti-sousveillance.