I think the concern is more widespread use by LEO and corporates who have far less oversight - and will effect several orders of magnitude more people.
You have vastly overestimated the oversight on intelligence agencies.
And how much legal oversight do the FANGS have? Let alone some local US police force run by individuals such as Sherriff Joe
It will be less widespread and fewer engineers will push it forward.
This is how you get billion+ defense contracts. Because Intelligence Services always get what they want regardless of the price and we pay for it.
It will not give them access this tech on every consumer device with camera.