Actually, just having a working camera system would do wonders for Starfleet Security.
The same could be said of security on certain battlestars.
Wilfully relinquished and kept out of widespread, lawful use. That's abandoned.
Unless there's a cloaked fleet of sentient starships crewed by Augments that I don't know about.
I'll grant that artificial sapience has not necessarily been abandoned, but it's treated (perhaps wisely) with considerable caution.