I think the way I feel may be contrary to popular opinion here. But, I think the parents need some time to process everything and be willing to pull the plug on Jahi. I think they will - or should be gently urged to do so by family/clergy/chaplain - after they absorb that fact that she is not going to recover. The hospital has made her death that much harder.
I also wish they would stop referring to Jahi as "the body". Even on machines, she is still Jahi. I think they're doing that to reiterate the fact that in their opinion she is 'dead' and to drive that point home to the media/family. But that is being very insensitive to her family, IMO.
As for lawsuits, I hope her parents get whatever they ask for. No one should die in that situation, in PICU surrounded by nurses/doctors. Yes, there are trivial lawsuits these days and everyone is wanting their chance at the million-dollar lawsuit (banana-peel man on the elevator comes to mind). But this a bonafide malpractice case. Hands down. Maybe her family is handling it differently than some of us would, but bottom line: I believe that the hospital is responsible for Jahi's death.
Just give her parents time to accept the inevitable and to realize that she is not going to wake up. I could be wrong, but that's what I think they want: just a chance to see if she may wake up and to absorb everything without also arguing with the hospital (which I think has delayed their grief process - they still haven't accepted it yet, I don't think).