The soundtrack being the way it is was IIRC mostly a result of them moving offices and not continuing to work with their previous composer, who didn't move with them. I wouldn't necessarily say the shuffling of content made much of a difference there in the end, because despite the massive variety of different settings, the game has fewer level themes than a New Super Mario Bros. game. It doesn't seem like they cared about making sure the music closely matched the level to begin with (or its quality in general, for that matter), so I'd be surprised if they threw much if anything out during development (and baffled, because they needed every scrap of music they could get). It's a thing that happens, I think both Retro DKC games had the music continually tweaked throughout development as the levels evolved, and you can still hear some earlier versions in Tropical Freeze prerelease footage. I just doubt it was the case for Crafted World because it really doesn't seem like they cared in the first place.