Isn't there quite a demand in "the West" to send money to Ukraine, meaning that they will be quickly replaced (and by a company that might later become their direct competitor).
And is been nearly a year since the events described in the blog : HAS a new company popped up ?
Well. There's always a demand in all the disadvantaged places. Not only Ukraine.
As for the supply, money will always find a way. Crypto, shady banks etc.
I think the established businesses which are common to EU and US people just don't want to deal with the government. It's easier for them to comply in a preventive way. Many immigrants in the EU face issues with banks (virtual and real) blocking or not willing to open accounts. Just to be safe.