I already said I'm sure there will be a gym. And they won't stop you from exercising.
I'm saying that you paid for an indepth experience. You have to prioritize. If you want to exercise and not participate in the event you spent $2,000, go right ahead. If you want to do both, then get up at 5 AM.
If you want to go for a swim, fine. Do so. Every moment you swim is a moment you're not participating in the $2,000 event you paid for. You have to prioritize and what you chose is up to you.
Went to Wookipedia. Didn't see anything about Ordu being intergalactic.
On a cruise ship, while you wait for your room, you walk around. You listen to the jazz band. You hang out in a lounge. You play cards with your group. I'm presuming that the SWResort will have lots of common areas: lounge, cargo hold, pool deck, observation deck, etc... You can start getting in character and chatting with the CM and other guests. There not going to keep 300 people standing around in a lobby waiting for your room to be ready. And if the experience comes with access to SW:GE, you hop over there and come back at 3 PM for the beginning of the resort events.