Hi Masaki,
As I recall, you did book the same excursions. Really unfortunate that you missed out on a flight with Island Wings. It was such a highlight. You need to go back and give it another try.
RSSC did embark from Canada Place, which made our stay at Pan Pacific a breeze. I actually booked Pan Pacific on my own. On the day of embarkation, I noticed on the Pan's reader board of daily events that RSSC had a Hospitality Suite. We wandered in there and they took fine care of us. I don't know if we were entitled to use the Hospitality Suite, as we were not a part of RSSC's pre-cruise group. It was our first cruise experience and we had no idea.
As for our luggage, prior to check-out, we had a bellman arrange to have our luggage brought onto the ship. The whole process was effortless.