Then comes the other 800lb guerrilla, what about Auriel? He's not the good guy time god, unless you believe the mer, as Auriel is anti-Mundus.
Will Beth cop-out, and also make Auriel =/= Akatosh, and make the artificially created time god the real one? Then what's the point of Shezarr and the Divines? Something ain't right, and I just cannot accept at face value that the Mannimarco of dragons we got was really the fabled world devourer, Alduin, and that Akatosh is truly the real time god.
If Akatosh is, always has been, and always will be the sole real time god, I agree, that'd be totally lame, but just because something was a god in a past Kalpa / the very start of this one, doesn't mean he has to be a god right now. If TES has taught us anything, its that divine status is always in flux. According to the Boethiah letters, Trinimalacath wasn't a god last time around, so whose to say the reverse didn't happen to Alduin?
All I know is, I clearly didn't actually kill the first spirit, the dragon god of time, and hard as it may be, there must be a way for this to fit.
It makes no cool, but it makes sense. Religious texts can be false, y'know.