Yeah, I noticed all of the sailings for 2023 for the Oasis class ships hit Coco Cay on the way out, and days 6-X are sea days. On Wonder it looks like Apr 23, 2023, is the last itinerary for this year that stops at CC on the way back.
I was looking around for information on the change since it's across all Oasis Class ships and is the case for departures at Canaveral and Miami, so distance is not the determining factor.