Like it or not, the ACC grant of rights, 3X annual exit fee, and network likely makes it prohibitive for the B10 to raid the ACC this decade. If the GOR ended in 2026, instead of 2036, I might agree with that. Still, I don't think the B10 going south is a good counter for what the SEC is pulling.
I also think the one weakness of the SEC, even with UT and OU, is its geographical isolation. It is still contained largely in the deep south, eschewing the entire north, west coast, and northeast, making it still a regional conference with a relatively limited regional footprint. NASCAR if you will compared to the NFL. Very popular, but regionally compartmentalized. If the B10 moves into the west with big brands like USC, UCLA, and Washington, it becomes a much more national conference than the SEC stretching from coast to coast. If it moves into the Southeast with mediocre football brands like UVA and UNC, I don't see how that does nearly as much for them. Geography on its own isn't as important as it was when they took RU and MD.