Pretty safe to say that if you overfly your destination airport at FL210 in perfect VFR conditions and require your FA to bang on the cockpit door to get your attention, you're either sleeping or doing something untoward up there. If you work for a regional that only serves 5 airports that are all about a half-hour apart (go!), you hopefully will get to know the routes well enough to notice something like sailing past the ENTIRE ISLAND at 21000 feet.

Hopefully this becomes:

1. Bad publicity and another nail in the coffin for go!,
2. A really good argument in favor of revising duty-time regs, and
3. A flight-safety argument to be used in Mesa's next contract negotiation.

Good luck to the crew.