Why would you assume his doctors don't know? Seems he just doesn't want to know is all. And really, what difference would it make for his daughters to know whether he had years or months, etc.? So they can count down the days? I'm sure they're aware it's serious and are prepared for the worst. Not fair to call him a moron, but I know you like to be controversial that way.
Agree with you on "miracles," though.
A doctor usually is not going to go full aggressive unless the patient gives consent and is aware of the severity of the condition as well as the severity of the treatment. Plus, its up to the patient to seek out experimental treatment and if you don`t know what you have or at what stage, you will have none of these options available. The doctor is not there to make decisions for you. The more educated a patient is, the more options are available.
He can MMA all he wants, but thats not going to do anything at all.
As for the daughters, they may or may not know, but I don`t think Stuart is doing them any favors by keeping himself and his family in the dark as to the severity of his condition. One could argue, since they don`t know, they are counting the days even moreso since they may think the end is near at any time.