I don't understand that blog. The ASPCA and HSUS are two totally different entities that are often at odds and I feel like that blogger lumps the two together. For instance, the HSUS vehemently wanted to put down the Vick dogs and the ASPCA was the group that fought to keep them alive. I know because I like the ASPCA and I don't like HSUS.
I didn't see the documentary, nor do I really want to (except maybe to see some of my favorite dogs on screen), but I've not heard good things from the BR camp. Someone in the group kept count on their hand and counted 37 fight scenes. Horrific.
On the other hand, it seems that the show actually changed a lot of people's minds. BADRAP reports their mailbox is flooded by e-mails from the general public stating that the show, "totally changed the way they look at pit bulls (in a good way)." It's kind of weird, because I think everyone in the dog community is appalled by it, but if it works for Joe Q. Public then maybe it's not so bad.