^I agree with the general ideas behind what you said... except saying that should have called it the celica from the begining. The problem with that is two things. One we still don't know if its going to be celica, that is entirely rumor. And two even if they wanted to call it celica, saying it's a new celica would lock the name it and they wouldn't be able to change it later on.
The car was inspired by the ae86 but they never said it was a new 86. It was inspired by the way that car drove and they said this would be comparable in driving feel. Which it will (hopefully) but the name they never said where it was going. The only thing I dislike is the fact that in the US they're putting the car under a completely different brand...