Mrs Vache Folle and I are big boosters of pit bulls. Now that I've lived with one for a few years, I don't think I'll ever get any other breed. We get annoyed when we hear folks say things like,"Little Timmy McCracken was bitten by a pit bull." Why mention the breed? Most of the time the dog in question was not, in fact, a pit bull. Nobody ever says "A golden retriever attacked Granny!" or such like even though every breed of dog is liable to attack someone under the right circumstances.
It's analogous to including a reference to a person's religion or ethnicity in a statement about their alleged crimes. "Robin and Holden McGroin of Brewster were swindled by a Chinaman last month." "A Negro driver struck the sign post, causing damage estimated at $800." "The Roman Catholic gunman was killed in a shootout with police." "Scotsman arrested in bribery case."