PAC or Big 12. So, sec/b1g had 75% of the teams in. Now 8 in 12 they only have 66%, so maybe you have a point. But, ACC/Big 12 only have 8.3% each, so they went down from having 25% between the two.
Maybe it just feels worse when sec is getting 4, b1g is getting 4, and ACC or Big 12 are sitting their with one.