[0]https://www.theguardian.com/world/2015/jun/12/germany-drops-...
[0]https://www.theguardian.com/world/2015/jun/12/germany-drops-...
The main story about that incident was that the US had been spying on regular German citizens for years (decades?), as per Edward Snowden's revelations, and the German Government knew all about it. They didn't care at all. In fact, at the time it was sort of understood they were quite ok with it. It was only after "one of them" were hacked, they, sort of, cared.
The Germans are not oblivious to this fact, so it didn't really come as a surprise when it happened. That's not to say they didn't care of course, as you point out.
The only ones surprised were the ones that actually believe alliances are friendships.
"Internet is new territory, uncharted territory to all of us." (the infamous Neuland).
Funny because I'd have said, if there would be any country to dare to spy on the US, it would be France. Anyway, the number of incidents going in the other direction are much more numerous.
In even EU country we have some parties that are more pro-West (pro-US) and others that are less, although nowadays, these latter are a minority. But openly criticizing US policy is not the same as spying on their dirty laundry.
I just can't see any real reason for countries in the EU to be scared of doing it, at most there could be some kind of "respect" but that concept doesn't really mean much when espionage is in play.
Who knows what happened; it's certainly possible, perhaps even plausible. But neither the absolute "hacked and spied" and "nobody really cared or did anything" are true, according to the article you posted yourself.
And regardless, there is no equivalence with the ICC case here anyway, for many reasons.