Tracks are what is driving the evolution of this particular class. Tracks have evolved from pure dirt, to hard packed clay, to sugar treated clay and to carpet and astroturf in europe.
So cars are evolving along. Though us rear motor lovers shouldn't criticize cars, we should criticize track owners. But that's not possible as high grip tracks have followers nowadays as dirt tracks had.
I think it's a matter of time. In a couple of years maybe a new material will be found that would build dirt tracks that have medium traction that stays the same all day long without maintenance and then we can all switch back to rear motor and listen to the banter of those wanting mid motor cars. Or worse... front motor cars.