Big Sky Games Week 9 & Other Games of Interest I think that's a bit pessimistic and I think there's some wiggle room in your predictions depending on exactly how the wins/losses shake out.
I agree on the winning out/losing out scenarios. If we win out, we're getting a bye. Winning out would mean we'd be 10-1, probably co-Big Sky champs (with Sac and/or Montana St) wins over an FBS team, and at least two playoff teams (I bet Weber gets in if they win out, which they probably will so that would be three playoff teams). I think the only way we lose out and get in is if all three are close losses. But even then we're 100% going on the road.
Winning 2 of 3, we're definitely in but we probably don't get a bye. The one scenario where we could get a bye would be a close loss to EWU/Sac. Eastern is probably a top-10 team when we play them unless they get blasted by Montana St. Sac's up to 15 in the STATS poll, won today and should win their next two. They're a top-10 team when we play them. That matters for optics. But I think we absolutely get a home game if we win two of three unless EWU or Sac just hammers us. But EWU hammered us in 2018 and we not only got a home game but a bye also. Let's say EWU hammers us. We'd be 9-2, wins over FBS/playoff Weber/playoff Sac. That's a top-16 team, which is what you need for a home game.
Winning only 1 of 3 and I think we still get in, though I doubt we get a home game. The only way we would get a home game is if we beat NAU and lose close to EWU/Sac. But realistically we're probably not hosting. But a 8-3 Big Sky team with an FBS win and at Weber is definitely getting in. Maybe if we get blasted by EWU/Sac and barely scrape by NAU we get left out. But even then, I think we still get in, though yes, we'd be a bottom seed and would probably face #9-12 in the first round.