I think that would require a lot of delta-v, the space is very big even for tens of thousands of satellites.

But even if true this doesn't really count as dual use military technology that "everyone knows" about. Everyone knows about the communications part.

True, I should've been more specific. I just happened to know that China considers it a threat due to this paper put out by the CSIS thinktank.

https://interpret.csis.org/translations/starlink-militarizat...

Maybe I should submit it as an article.