To be fair though, Tilley strikes me as somebody with a lot more expertise and investment than just an 'amateur home brewer'. Like, widespread deployment of Starshield began in 2023? 2024? So far, the only "public" response to this has originated with him.
Discussions of ethics of disclosure aside, if this really was causing issues, you would figure somebody actively using the spectrum outside the U.S. would have screamed by now.