This episode was a disappointment to me. While it had its great moments, it didn't have a good ending. The Mane 5 could've easily followed the ferry with their flying car, or at least flew to the location, but they didn't for some reason. I understand the message was that "You don't need a tropic resort to be together," but that was executed poorly. Sunny probably spent a fortune on those tickets, so deciding not to go or get a refund was just bad decision-making.
I feel like this could've been written better, like say the Mane 5 arrived at the resort and do some activities separately, then get disappointed that it's not up to their standards, and group together and decide the resort isn't for them. At least we'd get some satisfaction instead of not seeing the resort period.
I know it might sound like I'm whining at this point, but given the possiblity we might not see this resort in future episodes, this is, in my opinion, quite a letdown given the hype.