I agree, this makes no sense. Can the "Russian High Court" block access to all pages mentioning the invasion of Ukraine and Wikipedia will just comply worldwide?
- fine(s)
- arrest(s)
- asset confiscation
If WMF has no physical presence in Russia - there is no way to enforce this ruling and can be "ignored".
You will notice they only order US companies to do so.
ASML, however, abides by U.S. export control regulations because that was a requirement for the approval of the acquisition of SVG.
Everything flows from there.