on a more serious note, Giglio is making two assumptions:
1. the B1G will get a team into the Orange Bowl, opening a spot for the ACC in Citrus. His reasoning here is that Bama will sneak into the CFP as the #4 seed. UGA will go to the Sugar as the SEC rep. That leaves Florida as the next highest SEC team, and Giglio thinks PSU will stay ahead of them in the rankings. This also assumes tOSU wins the B1G and the Rose selects the B1G runner-up (Wiscy or the Gophers). That is reasonable but obviously a lot can happen.
2. He also assumes UNC will not be able to jump a Tier 1 team. This is where I believe his logic falls. If as Giglio suggests, UL gets Citrus/Camping World, the rest of Tier 1 would be WF (8+ wins), UVA (8+ wins), Pitt (8 wins if they beat BC), and...Miami, who will have at most 7 wins and would therefore be "jumpable" by a 6-6 UNC, unless there is some nuance I am unaware of.
He also seems to think the Citrus/Camping World designee would be ahead of Tier 1, so to speak, such that a 7-5 UL could go there ahead of a 9-3 WF; and that a 7-5 UL does not open up Tier 1 for UNC at 6-6 to get in
Edited to add that on Twitter, Giglio clarifies that the two win rule does apply to Citrus/Camping World, so if WF wins and UL loses, UL cannot go to either of those bowls (the loser of VT/UVA or 8-4 Pitt (Pitt won't go) can)