Bad thing is that they seem to draaw the wrong conclusions from that. Treating some of their customers like shit probably won't help. I would have bought some of their games here at full price on release day if they would just include the German language. $20-25 is a fair price for their games in my eyes, but I'm not willing to pay around 40 Euros for a quite short adventure game just to get the original language.
Instead I wait for them to include it (sometimes years after the original release) and buy the games for $5 in a sale or for even less in a bundle. Seems to be a loose-loose situation in my eyes.
1. They know full well that releasing a game from a German developer without German is not seen as a good move. They do, however, add German when they can. See The Night of the Rabbit as we just recently (about a month ago) added the German language to that game :)
2. They DO release games in German when it's possible. See Blackguards for example. German was included right off the bat.