The poster might not have said those exact words but all of you "cord cutting" , "alacarte is coming" tv phrophets all of a sudden pretend the two most popular leagues are somehow not going to be able to profit in a new environment. This tends to be a very simplistic view of things, and the conferences that control the content with the most demand are still going to find ways to profit one way or another.
I think the Rutgers expansion long term can work out very nicely for them. Putting them in a P5 league with OSU, Michigan, PSU, MSU regularly on the schedule is going to give them a chance to grow to be a true P5 team. New Jersey produces a lot of high school recruits, which was part of the reason for adding them and Maryland. The B1G only has one state Ohio that produces more than those two states in terms of football players. Pennsylvania might be close but probably does not in most years produce as many as New Jersey and Maryland. As well as having a lot of B1G alumni in the NYC area will create more interest overall in the Rutgers product.