The teamwork being taught in these courses is simply world class, glad to know everything is being addressed.
The statement was not made relative to teamwork, but a frank discussion of how to deal with an unresponsive, non-breathing diver when you are too far from the entrance to even reasonably rescue a diver. If I had a medical incident and stopped breathing 1,000 feet back in a cave, the last thing I want my buddy to do is try and haul me out of the cave to "save" me; only to die trying. At best, I'm brain dead, but more likely just plain dead. I think this is a reasonable discussion to have amongst cave divers, whether students or fully certified, especially when the parties involved were all older than 50.