I contemplated this for a bit but one thing I kept thinking about is:
_They're already logged in to Tailscale_
Why do I need to install and configure another full-blown app dedicated to doing something Tailscale already did? Why have the users go through two hops of authentication?”
[1]: https://www.youtube.com/watch?v=Vt4PDUXB_fg
Edit: just noticed this is not retroactive. Still concerning looking forward.