ND is the convenient "villain" this year for the shortcomings of the system, the shortcomings of the ACC tie breaker process, and mistakes of the Committee.
Everyone is pissed at ND for running off 10 wins in a row, and rather than the Committee saying hey, Miami, don't lose twice to unranked teams, and hey Texas, don't lose to Florida, and hey BYU, play some real teams, and all of you stop complaining, they instead conveniently hide behind ND.