This is the biggest mindset problem. The CFP is set up to choose the top 4 individual teams which will play to determine the MNC. It just so happens 2 of them are from the SEC this year.
It was increased from 2 to 4 because of the many years where there wasn’t a clean resolution. Think of ‘04 with more than 2 regular season unbeatens, ‘03 OU blown out in their CCG but remaining #1 in computers to overrule the human polls, ‘11 Bama over Okie State for the second slot, a couple unbeaten minor conference teams left out, etc
This year should have absolutely zero controversy in regards to which 4 teams are chosen.