You were taken in by that story. You see, it's not just a blowhole. It's also the internal passages that connect to the blowhole. And there are a lot of those skulls now. All with transitional blowholes. And BTW, your link doesn't say what you claim it does.
Scientists initially believed that Pakicetus had flippers and a blowhole, because the teeth and middle ear were like that of a whale. Everyone was surprised that the whale-like anatomy was acutually on a land animal. So when a complete skull was found, it had nostrils close to the end of the jaw.
Dorudon has the blowhole positioned somewhat farther back.
BTW, look at the limbs on Dorudon:
Flippers. Precisely what your guys led you to believe weren't there. They lied to you, like they apparently lied to you about drilling out fake blowholes. Did you honestly think that was true?
And a bit later...
Pilot whale skull. Notice the transitional blowhole
When are you going to learn that those guys lie to you?