I think it would be a good step for Iran to use cryptocurrency for international trade after Iran was banned from using the US Dollar.
And the US government will not take any steps knowing Iran is starting to use cryptocurrency, because cryptocurrency cannot be
controlled by anyone. Although the United States has a strong influence, if it is related to cryptocurrency, you cannot do much.
Because it is impossible for America to close all cryptocurrency transactions.
I can't really say if it is good that Iran is starting to accept cryptocurrencies because Iran has a huge conflict with the US government. But I think Iran made a great choice for legalizing import funding using bitcoin and cryptocurrency, so they could get away from using US dollar or fiat currency.
This is a gamechanger for Iran which is crippled by its own economical crisis followed by US led sanctions, I feel this is the only way left for Iran to international trade which cannot be controlled by US government, hopefully they will someday endorse usage of crypto currency for civillans as well because now they are using t only for huge international transactions and trades not in daily life usage.