Agree 100% but with one condition.
If most of the money heavily coming one way and the line doesn’t move much , I mean in this case stays at -9,5, -9 at most,bookies took a position and they wants to attract as much money as possible because they feel very good/strong about their position ( a pro will call Bookie Bet )
If the line will drop at 7 let’s say or more until game time , you are 100 % right, they let the market decide
Why I am telling you this, because I feel this game it’s a Bookie Bet.
Will see until Friday the line movement and will see if Princeton will be bet heavily until game time.
If you want an example of what I said look the college football Championship game Georgia vs TCU