The Cyrodiilic "Race" (As in Olive-skinned smooth-talking Men), though, came out of nowhere, and broke the established lore that the Imperial Province consisted of a mostly even blend of all other races into a unique culture. They could have even had all the unique updates to province's culture introduced in Redguard and Morrowind without having to create a new race of Humans. Any Elf, Cat, Lizard, or Man that calls Cyrodiil "Home" is an Imperial by "race" - even if their dermal makeup and lifespans vary.
In fact, their existance forces ALL races to conform to stereotypes and caricatures.
That just doesn't follow.
Where would a unique Cyrodiilic culture, moths and facial tats and all that smooth jazz, have originated from if not from Cyrodils?
Was it invented, wholesale? That's patently ridiculous and unbelievable.
Is is just a mash-up, a garden salad of all the others? Because that's hardly unique.
Honestly, the old, pre-Redguard Cyrodilic Empire didn't make a lot of sense. Where did it originate? Certainly, not Cyrodiil, since there was no native population. Are we to believe that all the races just kind of got together and mutually decided to incorporate, with the capital in this vacant-lot-land in the center? Because that's entirely too silly.
I really think that the lore needed Cyrodils. The whole thing runs better as a result. Mind you, that's qua-olive-skinned-smooth-talking-men, not generic men that generic boring people can identify with, because then they do make the other races look caricaturish in comparison.