> Germany believes it can sue over anything in the german language
You did not read the ruling (carefully). The language of the books was not discussed at all. It was discussed whether the offer (to download books) is directed to people in Germany.
Project Gutenberg said "NO", because they use a .org domain. (Obviously trying to claim that Germans only visit .de domains and neglecting the fact that .org is really trying to stress international coverage)
The court ruled "YES" because
- Project Gutenberg explicitly mentions to be available worldwide (before the geo blocking resulting from this very case)
- Project Gutenberg has some of its Web site translated into German. (In court they argued they did that to address US users, because German is the 3rd biggest foreign language in the US. The court did not accept that argument.)
Furthermore it was counted against them that project Gutenberg advises on its web site that users must check local copyright laws before downloading, because downloading might be illegal according to local laws.
Taking these points into account I must say the court ruling was logical from a legal viewpoint. Project Gutenberg had only lame excuses and in fact denied their own mission in court.
The real issue is that incompatible country laws don't fit at all with Internet (unless you propose a Chinese big (fire)wall). But I don't see any improvements any time soon, a certain president just declared last week that trade wars are the way to go.