What the **** are you talking about? Are you just terrible at math? If "last 4 in" means you are one of the last 4 teams in the field, "last 4 byes" means you are one of the last 8 teams in the field. How do you not see this? What part of this is disputable?
Where some level of concern might come in is that...and you might want to take a seat for this one...Lunardi is not the NCAA tournament committee. Shocking, I know. He makes incorrect calls every year, especially regarding the order of teams. Although he has us as the 8th team in right now, it's possible he is wrong and the committee would have us as, say, the 5th team in. (A larger error than that is highly unlikely.)
But also, that's the situation today. There are teams currently behind us or not in the field at all that could still make noise, and we know there will be bid stealers. It's not inconceivable to think we will drop another 2-3 spots if we don't win today, as other teams currently seeded behind us keep winning.
The good news is that even in that scenario, we'd still be in. The only way we get left out at this point is if there are an outrageous amount of stolen bids. The odds of that are very low.
Had we lost to BC though...it'd be a different story. We'd have dropped a couple of spots from where we are today. Maybe we'd be among the last 3-6 teams in. Again, we'd still have a decent chance on Selection Sunday, but we'd be more exposed to a run of stolen bids.