Elon may have given them the info

No need. Spaceflight fans (like me!) are supporting and funding what may be the biggest aerospace espionage operation in history by a factor of 10, down in South Texas. With crowdsourced tracking and analysis. Must be beyond the CPC’s wildest dreams!

E.g.:
https://www.youtube.com/live/mhJRzQsLZGg
https://ringwatchers.com/
https://sh.itjust.works/post/27492397

And we ain’t gonna stop!

starlink availability in Russia

I remember a story coming out about Russians using Starlink but it seemed a bit vague to me. Has anyone reliable actually asserted that SpaceX are significantly underperforming in the job of blocking captured terminals (once notified), or other aspects of the day-to-day operations that the Ukrainians would do if they controlled it themselves?

FWIW, SpaceX seems to deny it. https://x.com/SpaceX/status/1849956344691912873

" … As has been repeatedly confirmed by the Department of Defense, SpaceX has worked (and continues to work) in close partnership with the U.S. Government regarding Ukraine and denial of service to bad actors. …"

as far as I’m aware, they’ve done 1 EVA to look at the thing

Don’t think so.

They do have access to camera imagery, but as you say, most problems like this probably need much more intrusive investigation.