No. This is true of ANY dog that isn't dog-socialized. I could write reams about this, but I'll keep it short.
Non-socialized dogs can't speak dog. Think about a human raised by dogs and how they'd act around another human. They just wouldn't speak the same langauge. Yes, I'm serious. A non-socialized dog doesn't understand the cues when another dogs makes the "you're my bitch cause I'm the alpha" movements.
Dogs rarely, if ever, truly fight unless they can't speak dog. If they can speak dog, they'll have a short conversation: their hackles go up, they snarl, and they might fight for a few seconds until one establishes dominance. That's it. That's how dogs keep social order, and it's a lot fucking more straightforward than our human system.
Another problem is stupid owners. You do NOT introduce dogs on one of the dog's home turf. If you do, the dog who is on his own turf will immediately go into "this is my terroritory and I'm alpha" mode, and there's gonna be a throwdown. You introduce them elsewhere. In the road or in some other neutral territory. Once they talk and decide to get along and ignore eachother, then you can take them to one of the dog's homes.
There's a whole list of ways to do this. Unfortunately the urban trash who pick pits for their fierce nature don't ever teach their dog how to be a dog, and as a result they end up as a pseudo-dog who can't speak to other dogs, and only has one response.