JDS was most likely distracted!
OK so recently in a video the great Schaub picked junior to win the rubber match. Junior knowing this was probably only thinking about not failing Schaub and in turn was not thinking about cain during the fight. Cant really blame him either who would want Schaub mad at them.
Then to make it all worse he tried a hail mary and went for a submission in the 5th, realising it did not work he knew Schaub would be mad he failed at this submission. So he put his hands on his head to cry. Worrying about what Schaub will say.
Cain never won that fight. JDS just lost due to fear