Those are not counterexamples, you are agreeing with me. There is no such thing as free speech in Germany, only some weaker right. There are laws limiting speech, and actually (as that article seems to complain about) they are applied to citizens and non-citizens equally, meaning that even a Jewish citizen of Israel can be deported from Germany for uttering anti-semitic statemens. Everyone arrested should have known about those laws, they have been there since the founding of the modern german state after WW2.

What I don't know about is the turn of things in the US, US laws didn't include those kinds of crimes and used to protect freedom of speech in a far more comprehensive manner. Things seem to have changed there, I don't know.

Btw. my personal opinion is that Germany should have US-like free speech and that the only limits to free speech should be where someone is directly and immediately put in danger of physical harm by it. (e.g. shouting "Jump!" to a suicidal person on a railing, or shouting "Fire!" in a dense crowd)

If Germany keeps finding that Jewish citizens of Israel are being antisemitic and wishing for their own deaths, perhaps it's actually Germany's antisemitism detector that is miscalibrated?

Not many people in Germany dare to bring this up, because suggesting that German's antisemitism detector could be miscalibrated, is, itself, something which Germany detects as antisemitism. Which, if you think for more than five milliseconds, is further evidence that it might be the case.