clue to prayer's importance in the last days

Mark 14:
27 “You will all fall away,” Jesus told them, “for it is written:
‘I will strike the shepherd,
and the sheep will be scattered.’*
28 But after I have risen, I will go ahead of you into Galilee.”
29 Peter declared, “Even if all fall away, I will not...
(later in Gethsemane verses 32-41)
Jesus said, "My soul is overwhelmed with sorrow to the point of death. Stay here and keep watch..." then he returned to his disciples and found them sleeping, "Simon" he said to Peter, "are you asleep? Could you not keep watch for one hour? Watch and pray so that you will not fall into temptation. The spirit is willing the body is weak."
This happened to all the disciples two more time and "they didn't know what to say to him"
During the Lord's darkest hour on earth they did not stand with him in the place of prayer, and later we see they did not stand with him at all. Jesus told them they would all fall away and they did. All of them, even the most zealous. They were brought back to him though. I am comparing this to the great rebellion or falling away of the last days. It will be the darkest hour on earth, and Jesus is asking us to stand with Him during it. If you have a prayer life communing with the Lord, then you might stand. If you do not have a prayer life you will not stand with Jesus.
Is this a reliable comparison? anything else?