He didn't use "reasoning" at all, he gave predictions (threes and lack of D) to rationalize his under bet.
This is reasoning: Pitt all-time is 11-0 (now 12-0) against top 10 teams at home and their ridiculous guard is back and healthy. Georgetown had sat around idle after barely beating Rutgers. Pitt has momentum and should win at home where they thrive in these types of games. Go with Pitt -1.5
At any rate, we win!