We flew out at 11:45 on a Monday after the repot from San Diego to Vancouver in May. We had second seating and still made it to breakfast... they push you out pretty quickly anyway. We were able to get off the ship as soon as we finished eating because we were in the first group to debark since our flight was so early. We did not carry our bags off but claiming them was pretty quick too. We took a cab and made it to the airport with quite a bit of time to spare. In fact, we just sat out in the front lobby for awhile before starting the whole check in/customs experience.
If you have the option to stay another day, I would say go for it. I wish we could have. But if you need to fly out and that's the only flight for the day, then you should be able to do it. I do agree that it can be stressful because everything has to work perfectly and anything can happen. But I would do it again if I had to.
Jennifer