I don't really think we've seen that much evidence re: bowl season. Maybe that changes, but honestly I think they'll just end up moving bowl season up (especially with the playoff starting Dec. 20) and the portal a little later to combat the opt-outs.
As for the NIT, I don't see this as much evidence that teams don't care. Here's who is playing this year:
Seton Hall, Wake Forest, Indiana State, Villanova, SMU, North Texas, LSU, Boston College, Providence, UNLV, Princeton, Xavier, Georgia, Richmond, Virginia Tech, Cornell, Ohio State, Minnesota, Butler, Loyola Chicago, Bradley, San Francisco, Cincinnati, South Florida, UCF, Kansas State, Iowa, UC Irvine, and Utah.