You are inferring here. Other coaches may believe the timing of the event isn't detrimental to success in March, or they like the chance for program exposure and a million dollars knowing they aren't winning NCAA's anyway. Winning national duals may be a bigger deal to other programs, but holds no such value to Cael.
I've felt that, while I love watching Cliff Keen, a grueling tournament like that may be detrimental to performance in March.
Unlike 5 matches in a couple of days, ASC is one match at the beginning of the year.
Cael's job isn't to make any event as good as it could be. PSU absence from any event makes it "less good as possible". Is it somehow not as bad that they don't participate in Cliff Keen because they aren't the only one that doesn't.
Choosing to stick to your game plan vs. $200k does equal being a prick. If your favorite team were offered $1 million to fly to India for an exhibition match and fly back the day before NCAA's, your coach is not a prick for turning it down.
What Cael has said about the event is quite different. So, if you, like many, believe the sport would be better if PSU didn't dominate, should Cael tank the NCAA's for the good of the sport? If you asked any coach a hypothetical, "Would you participate in National Duals if it guaranteed a worse result at NCAA's?", I think they would all say no, regardless of the "good for the sport" argument. So, 16 coaches think it won't hurt their chances and one does. But most of the 16 have no shot at the podium anyway and one keeps winning doing it his way.
If the dates for next year's National Duals were firmed up right now, I think there is a chance Cael rearranges next years plan in order to participate.