Agree but look at it from manufacturer's point of view. Why shall be people from Porsche or Ferrari happy that they fight with Škoda, Ford or Hyundai? Their whole existence is based on the principle of exclusivity. How can they sell as an achievement that their 911 fight somewhat successfully with Fabia when You can buy a Fabia for price of exclusive painting on 911?
Their target is Ferrari or Lamborgini, not Škoda or Hyundai. That's why they may be interested in rallying only if they can defeat the plebs. But is it a right thing to allow them to do so? Will the other traditional rally brands stay? Who knows but maybe it's correct decision to keep rallying as a playground of these mass manufacturers who have proved to be willing to keep their focus in rallying for decades and who undoubtedly gain marketing points from it.