It's like complaining that the new Doom didn't have a RTS option.
your analogy is off target.
Let's illustrate a better "what if .." ...
What if the next Starcraft came out and it was turn based instead of RTS? Could you imagine the backlash? Even if it was the tightest, most challenging and rewarding turn based experience ever created ... it still wouldn't be Starcraft to many fans.