It is Germany's "Gateway to the World" and all. Just looks weird. I guess its better than it not even being a port in HOI3.
Yes, though if I remember correctly it was patched at some point (might have been a mod instead), but then it just became an inland province with a dock, which also looked weird, and somewhat counter-intuitive. Anyway, not a big deal IMO. I'm way more annoyed about the whole America's placement thing. But as far as accurate borders and shorelines are concerned, it looks way better than HoI3, even after the patches, and on pair with Victoria 2.
And I also agree it would be helpful to point out incorrect/misplaced province and city names, but the game is still in development, so we can't ever know for sure if something is final or not. Might be a lot more productive to wait until the game is released before we go around pointing it out...