I feel like a larger problem is that Disney either feels the need to thematically justify a track, otherwise it goes in a big box. That might limit what RMC is able to do with an outdoor coaster. I think Disney needs to do what Universal does and accept that in a theme park the audience can suspend their disbelief with visual track in the same way that theater audiences suspend their disbelief with visible lighting rigs, nondiegetic music etc. Roller coaster track is just a part of the deal and if you can't hide it, why not go all-out with what it can do.