Personally, I don't care that there isn't damage in GT. Haven't cared from Day One, Never have, Never will.
Also, personally, I have always wondered what is/was the big fuss about adding damage in GT, in fact because it isn't a big deal to me. I rather have PD concentrate on things like adding manufacturers like Porsche, Lamborghini, Maserati, Koenigsegg, Noble, Ascari, and Tracks like Road America (one of my favorite courses off of Forza 1-minus the deer running across the course, please, if you know What i mean

), Spa-Francorchamps, Sliverstone, Road Atlanta, and countless other tracks that they could concentrate on instead of worrying about one meaningless part of gameplay that forces them to suck up to car manufacturers because they (meaning the makes) don't like the way that PD wants to do it.
Just my opinion, tho.