American companies have contested warrants have they not? The jump from request to warrant is not the major hurdle.
Imo people often make the wrong tradeoff here. If the government really wants something jurisdictional questions will not stop them. You're actually inviting them to just steal it at that point.
Better to keep things in the US where there will at least be a clear paper trail. And instead of wasting money on non-aligned infra budget for a half decent lawyer. American companies and citizens will have an easier time holding the American government accountable than "non-aligned" hosts. The current administration in particular is routinely embarrassed in the courts.
Sometimes I read about left wing civic groups and their privacy efforts and it feels delusional. You would think many of them would relish a paper trail of persecution and the publicity of a victorious court battle. The US government will not be deterred because you are hosting something in Europe or your homegrown service. It's really a bit of a joke to think so.
Plus what do you think is going to happen in two years? It feels like now is the time to lean into being on the shit list (if you can manage it - most of them are so ineffective they barely even register) so you can benefit when the tables turn in two years.