It was originally permitted as a building, so pretty sure it was more than speculation.
Agree though, Mine Train is a better example of a cut that actually made a huge difference to the ride. I still like it, but could've been a lot longer.
EDIT: There were 8 new buildings originally permitted for the project at the start: Maintenance, the 3 small support buildings, round structure, drop track building, the addition to the queue building near start of ride, and the spike enclosure. So far, all of the other buildings were built, only one was not.