You might break out of your FAR 91, small plane world and refer to FAR 121.333 and FAR 121.646. Airliners are REQUIRED to provide for a depressurization in passenger operations at the ETP. Wet footprints are NOT allowed.
I don't have a B737 FPCCM, but you can be assured that the plan has fuel for a diversion at the ETP, either onward to HI or return to CA. We do it in business jets, the airlines do it. Simple or you don't go.
GF