True but there were 5 power conferences for 4 spots when that occurred, now their are 4 P4 conferences and 12 spots. According to the Athletic article I posted if this P6 conference gets to 8 teams then it would be 5 power conferences again and they would get one of the bids as a power conference.
The article clearly states starting in 2026 the five power conferences champion gets a bid to the playoff and then the remaining teams to fill out the bracket. The only thing other than that is that the B10 and SEC will get more bids than the other conferences. So if the new Pac 12 can get to 8 teams it would then qualify as getting a conference champion bid to the playoff. Maybe the athletic article is incorrect, but that is what is says.