The problem is the same. It still costs money to support crypto payments via taxes, payment fees, customer support etc that it's not worth to collect crypto from these countries. It's much more lucrative to just target US markets

I used to see the occasional crypto donation link, and you can still find several websites for companies offering to facilitate that, but I haven't seen one of those links in a long while.

Because no one wants to use a currency that is tightly (and correctly) associated with child porn and North Korean scammers.