Board Thread:Lore Discussion/@comment-95.94.124.138-20130922100323/@comment-70.34.133.250-20140407155005

Daedric Prince Of Potatoes wrote: he can go, as after you finish the main questline Tsun says he will allow you in, when it is your time, no matter your race

That's because YOU are the Dragonborn that fulfilled the prophecy. That's why your race doesn't matter, but it's still an inconsistency in the lore regardless, and not applicable to just anyone anyonw. Plus, since you did get rid of Alduin for them, they owe ya lol.