After listening to the 28min version (a big thank you to Bill for the hypothetical suggestion) it appears someone took Thomas Newman's score, orchestrated it for the attraction, placed some ties between cues, and emphasized certain tracks like 'Wow', 'Curl Away my Son', 'All Drains Lead to the Ocean', 'Finding Nemo' and '. . .P Sherman, 42 Wallaby Way, Sydney. . .' among others. (Yeah, I know, if added too many more tracks it'd be the entire album.)
It sounds like a less dense version of the soundtrack with an eye on keeping the emotions it evokes on an even level which makes perfect sense for BGM.