Inconsequential is a mutable state of being.
Governments are probably worried about what "consequential" looks like. And they could be coming from a benevolent point of view (might be used to aid in the commission of a crime/evade taxes/etc), from a malevolent PoV (could be used to expatriate capital), or even from a position of ignorance, laziness, and/or position of weakness (we just don't want to deal with the BS, especially objections from large international trade partners).
The USA and China are powerful trading partners. If one of them says, "ban crypto," the smaller country is likely to comply.