No I'm not under that impression. But I would expect some kind of mechanics optimization throughout the years. I mean design decisions have to be made right? When these devs are planning the game, the issue if making it real time, FPS, isometric, RTwP, TB, etc has to come up.
Do they just go, "TB is boring, but RT is too arcadey. Let's make it RTwP to try and make it tactical but less boring"? Do they say, "hey BG did, so we should do it too"?
I mean, let's face it, whether or not it works, it really is a goofy mechanic.