Does a business lose money when it stops trying to force a region that barely notices its products to buy them?
The simple fact is that pro capita the northeast just does not care much for Major CFB. There are 2, and only 2, exceptions: ND and Penn St. So the entire region has only 1 school located in it that has a large and passionate CFB fan base. Now, I do think that if ND and PSU were Biot in the same conference with Pitt, Syracuse, BC, and Rutgers, then there wounds a good possibility that over time, the Northeast could become a much better region for passionate following of CFB. That would be the football version of what Gavotte did for CBB in the northeast - and unlike the hoops version, that league still would need to have as many teams located outside the northeast as in the northeast to be truly widely watched and respected.
The BT has PSU and so has all the power over the per capita small northeastern TV audience for Major CFB.
For the ACC to become, and remain, the clear and permanent #3 in terms of TV revenue, it must become the one and only Major conference to have teams in MT. That is a lot of space, and many of those states now have growing populations. Growth potential in a region that historically has always been left out of Major Conference participation (until Colorado joined the then Big 7 and later the Pac added the AZ. schools - and even with that trio plus Utah would be somewhat underrepresented among major conferedceees per its TV viewers numbers per capita). Also add Cincy, which is a very large state school in a state that is as HS and CFB obsessed as any Southern state - making Cincy an anti-BC of sorts.
I think you misunderstand the northeast. Sure, if you think you can force CFB into a vacuum and separate it from all else, you may have a valid point. However, the northeast is far different than your analysis.
First, the northeast will follow a winner. Historically, the greatest concentration of pro teams is in the northeast which affects the college scene, to be sure. Yet fans will follow a winner, your point verifies this. When Syracuse was winning in football, the state followed. When Pitt was winning in football, they had a following.
Second, the northeast, though more compact than other regions geographically, still maintains the greatest concentration of people.
Third, PSU and ND don’t carry all fans. There is a large group of fans refusing to watch either or both. With a large concentration of smaller schools, it is easier to simply ignore that these same schools have loyal followings and would be loyal to winning teams in their region (I.e. SU, Pitt) not named PSU or ND.
Fourth, the northeast does not separate one sport out a in a vacuum. This is a costly mistake many people assume but the networks understand. In a region where CBB rivals CFB or may even exceed it, cutting off the nose to spite one’s face is not recommended. See, Second point.
Fifth, assuming an attempt to place CFB in a vacuum, I think you force the government’s hand with respect to Title IX, NIL, etc. Government involvement is the last thing anyone wants in college sports.
Sixth, upstate New York has roughly the same population as New Jersey or Virginia. That places upstate NY just outside the top 10 most populous states. This number matters far more than you think as PUS and ND fans are largely concentrated in downstate, which explains why Rutgers has so little market penetration into NYC. SU has better market penetration in NYC than Rutgers.
Anyway, dismiss the northeast, you have a right to your opinion. The networks and streamers think otherwise based on their actions.