US-EU data agreements are also about geopolitics.
And now US citizens from HN spin this as protectionism or over regulation and just ignore that there was a such a contract and it was not respected, it would make sense then that US guys won't complain if someone else would do the same, but you notice if an app related to China is only suspected of doing something like that the mob demands it getting banned if an US entity has the power to just search and read anyone's private stuff that is not from US then is fine.
I mean US could pretend they won't spy , and then work a bit harder to get the data they need instead of having 100% full access to everything.