I don't think very many bowls are actually going to end up being played, plus it looks like a lot of teams are "opting out" anyway, so I don't think we'll end up seeing a lot of 2-6 type teams playing in bowls.
As to how the remaining bowls that actually go forward sustain themselves... it's a great question. I really have no idea. Forcing a team to buy a bunch of tickets to a stadium where a lot of fans aren't likely to travel-- or possibly even legally restricted from travel by local authorities-- doesn't seem like it's going to be possible this year.
That's probably another reason several teams are already stating they'll opt out. Why even entertain the possibility?