The bull terrier’s head is horrific. The daschund looks like its back is going to cave in.
The “modern” hybrid dogs are definitely different than the “older” species dogs, visually. Genetically, no doubt.
Their lifespans/diseases comparison would be an interesting chart, but records on the older, species canines probably weren’t kept very carefully, and the article does mention more disease problems, probably indicating shorter lives for the new hybrids. Just guessing.