I don't think JWICS is DoD only. In theory, any TLA or FLA that handles TS material, has a SCIF and a local JWICS LAN can't be hooked into the rest of the JWICS network.

Things escalated, folks. They got a C&D:

https://torrentfreak.com/youtube-orders-invidious-privacy-software-to-shut-down-in-7-days-230609/

Start backing up the source repos now.

If you're already rich as shit and don't have to worry about any consequences for anything you do, why not?

NSA? Yes. CIA? Probably not. They don't have that kind of imagination. c.f., the internal parody of The Hunt for Red October they declassified about a decade ago.