The LED detects when it is blocked and the device refuses to function until it is unblocked. So no, working around that won’t be trivial, at least until somebody has found a workaround.

If Meta wanted to be really throughout with this, they could also keep record of how often there is an issue with the LED and brick the device and close your account if they detect tempering. The whole “trivial to disable” doesn’t fly in a world of closed ecosystem, locked down hardware and accounts requiring a real ID.

Also you can get spy cameras for $5 from Aliexpress anyway, so why even bother hacking this. Snapchat has some video recording glasses too if one needs an alternative.