The right to offend is also considered by many to be an important part of free speech-1.
In fact, I'm not so sure why the person responding to me is not at all worried. Even if the law is dropped, and this particular prosecution dropped, the fact remains: "a political artist was prosecuted for a poem insulting a politician."
If his point is simply Germany has better free speech than other countries, naming Thailand; then OK, I agree, but they're still getting close to treading a dangerous line.
1-https://www.theguardian.com/commentisfree/2015/feb/16/free-s...