I would have expected them to be in the hospital for at least 2 weeks given the circumstances.
Their intended victims must be very forgiving Christians to have not beaten them to within an inch of their lives.
The two guys they tried to rob were well within their rights to send them to the morgue rather than the hospital.
It takes a whole lot of restraint to end a fight (when it is life or death) when the other party is no longer able to fight back. I probably would have kicked them a dozen or so times in the ribs or face for good measure.