It is possibly true, though, for traveling purposes and maybe other reasons, that Denver may want to be aligned in more of a western-based league.
I'd convert "possibly true" into "both the school and the Sun Belt Conference scream from the mountaintops." I think the mountains they chose are too high.
If Pacific wants in the WCC, a 10th school is a good idea to create the enticement. Maybe, possibly, the way to the conference's heart isn't so much a profile school, but a travel partner for San Diego. For lo these many years, since the conference makes Loyola-Marymount and Pepperdine an obvious travel pair, San Diego gets rotated among the Bay Area threesome (San Francisco, Santa Clara, Saint Mary's). Who's got a program in a "religious" or thereabouts school in the Southland- or Arizona (?)- that's ready to move up?