I'm not taking a stance, I just try to represent the argument fairly - whether one actually agrees is another thing. Misrepresenting arguments as the PGLAF does is lazy.
According to German legal rules you always have to take an overall view into account, not only to each argument on its own. In this case, whether they intended to also(!) reach German users.
Anyway, 2016 the highest German civil court ruled in accordance to precedence from the European Court of Justice that copyright infringement on websites fall under German jurisdiction as long as 1) the website is accessible from Germany without circumventing any blocks 2) it's infringing according to German law. Showing that the website operator actually intends to reach German users is no longer necessary.
That sort of ruling reinforces the dominance of large megacorporations on the internet. A big company like Google or Amazon might be able afford to keep track of laws like that in every country, or at least countries with enough international influence, but a donation backed site like Gutenberg probably doesn't, much less a website run by a single individual.
According to German legal rules you always have to take an overall view into account, not only to each argument on its own. In this case, whether they intended to also(!) reach German users.
Anyway, 2016 the highest German civil court ruled in accordance to precedence from the European Court of Justice that copyright infringement on websites fall under German jurisdiction as long as 1) the website is accessible from Germany without circumventing any blocks 2) it's infringing according to German law. Showing that the website operator actually intends to reach German users is no longer necessary.