Utter nonsense.
Any sort of coaster in Frozen Land was not going to get the vibe of a 'barnstormer' filler pass coaster. It was going to be a major attraction (even if they did not intend it to be - they still used it in promos). The attraction could easily have been enhanced with a little more length, but the cost cutting at a vital stage is moronic. I've never known a coaster that short, and literally everyone coming off it bemused.
And since when do Disney get a pass pass for 'time pass filler coasters'? No one likes 'Barnstormer' - and the guise it's for 'kids' is a disgraceful excuse.