Themken: It must be a problem that the game testers are thoroughly knowledgeable about the game by the time it is published. They should have someone totally unfamiliar with the game AND GENRE play through it near release day and help spot where things are not clear enough. Egosoft is one company that absolutely should do this... but there are countless others.
Like everybody, really. Fighting games are notoriously bad at this. Communities basically teach the games via mentorship, which is why they largely don't do well: only smash has a tutorial that gets you to the point of reliably taking the main arcade mode on average difficulty.
what kills me about egosoft is that they're aware of the problems, sometimes, but won't update to fix them.