That pushed in nose may have been helpful at one point when it wasn’t so far inside of the face, but currently it doesn’t help them breathe, or keep cool at all. There is a lot of talk of BOAS testing and I do think breeders are trying to improve, but it is hard to reconcile respect for the fancy and among breeders and remember that these dogs aren’t being produced for their original purpose. The same thing happens with the GSD, despite not really having any singular purpose in breeding, we put them in the herding group and said that they were bred to be “living” fences, so this angulation and big trot helped with that.In the bulldog club of America standard, it says that the pushed in nose is to allow the dog to breath while its face is pressed close to a bull. I think that the only people who could tell us about this are probably long gone, so who knows!
I personally don’t necessarily mind the GSD as much, but it can be hard to understand how these dogs could do that job now. In Europe (Germany?) they do actually have a sort of endurance test for their dogs.