ASML is capable of deciding for itself whether it's risky from an IP perspective to sell to company X or Y. It's not ASML that is asking for these export controls. In fact, ASML executives have been warning that these export controls will spur Chinese investment in indigenous chip-making equipment providers, threatening ASML's business over the long term.
I completely agree that this is a significant risk of the export controls.
But China was already expected to climb their way into semiconductor manufacturing with significant investment. What, were they not going to do that? ASML was threatened long-term either way.
But I agree it will definitely focus minds in China on the problem and lead to some acceleration of their progress.
