We call them BSP's because thats what they are. Bad Bloods are something entirely diffrent from the expanded universe. People call them Bad Bloods because they saw them fight a predator, that doe's not make them Bad Bloods.
A bad blood is a Predator who doesn't follow the Yautja code, the Yautja code is based on actions done by Anytime and Pussyface, mostly Anytimes actions in the movie.
So a bad blood is basically a Predator who doesn't blow himself up upon defeat, it doesn't skin it's prey at any time during a hunt, it doesn't collect trophies of it's killed prey, it targets unarmed prey who haven't shown any aggressive behavior. It hunts in a conflict free area and the area isn't hot. It hunts in a area who is unknown to the target.
So I would call the superpredators bad bloods because they abduct ppl and hunts them in a area they are unfamiliar with.
They kill unarmed Prey and they are at war with Anytimes race.
Both Yautja and Badbloods hunt us and we end up dead if they are successful.
The reason and set up behind their hunt is the only thing that separates them at this time, (from what I can tell).
Yautja kill for trophies under special conditions (heat and conflict), the Bad bloods/ Super predators seem to kill/hunt so that they may become better at it, so that they may improve as hunters/killers.
The Super predators being Bad Bloods doesn't really have such a big impact on the prey...
The Yautja will hunt and kill you for your skull,
The bad blood would hunt and kill you so it may become a better killer.