It's almost ironic that this is reported the same week as journalists in the US getting visits from FBI agents for reporting about security concerns with the new Air Force One....
Formally, what's happening in Germany is enforcing existing laws against insults, libel and slander. I don't think any of these are legal in the US either. And I think it's a low bar to exercise your right to free speech, to do so without those.
It could even be argued that keeping insult and hate speech out of free/political speech will protect it. (Although it is debatable in which cases something can be protected by limiting it)
It's in the details of each case.
And I have to agree with the Article in one of the mentioned cases. While most of the cases boil down to simple misdemeanor cases of insults. Slap on the wrist like a speeding ticket. "Pimmelgate", however, is different. Raids were ordered by the state secretary (who was insulted) AFTER all necessary evidence has been gathered, the suspect admitted and the 1000 (or whatever a "dick" is worth these days)(*) was ready to be written. In a clear abuse of power, Andy Grote wanted to send message by having that guys apartment trashed.
So that case is a scandal in its own right, but not representative of the state of free speech in Germany. Each SLAPP case is a bigger danger to it.
(*) Update:
Before the raids happend, the suspect even has been told that his case will be dismisses because of its minor nature.
Source: https://de.wikipedia.org/wiki/...
containing another example of someone thinking rules apply only to other people.