That’s because the Department of Energy originally funded and contributed IP to the EUV Corp joint venture between several semiconductor companies (including ASML and Intel). Their ability to export control EUV was part of that original agreement that the entire technology is built on.

ASML complies as an ally, why would China comply?

The weights are already available and downloaded, is it going to be a crime to have them, run them, make them available? Constitutional rights still exist (I hope)