I kind of doubt Sam or Roberto condone soul eating or dismemberment. I read this more as one of their oldest friends just showed up bleeding and shot through with arrows looking for help and she's about to get beat up by a bunch of super powered kids.
Do the kids have a right to be pissed off? Sure. Would I stand back and watch them beat my wounded friend into the ground for revenge? Of course not. You stand up for your friends even if they can be b*tch sometimes.