Breeders have decided it is not worth it to breed dogs that have inherent health issues. The practice is unfair to dogs and it tarnishes the reputation of breeders and breeds. Besides dealing with all these health issues results in some pretty hefty vet bills for the new owners. Therefore they started breeding Frenchies with longer noses.
However this is not a completely new concept. In comparison with pictures from the past you can clearly see that French Bulldog champions used to have longer noses. Having such extremely short noses is a relatively recent development.
Theres a good chance we'll see a whole new generation of purebred Frenchies that are much healthier than their recent ancestors if the long-nose trend catches on. In my opinion thats great news!