Spending time and a huge amount of money on a rollercoaster in the dark next to a rollercoaster in the dark is short sighted when so much else could have been done with the massive budget. IMHO.
You're right, but forgot one other thing - it's easy. It didn't require any brain power beyond copy/paste. They didn't have to develop a cohesive story as to how it fits into Tomrrowland (like that even matters, given the current state of Tomorrowland), and they didn't have to develop a new ride. Copy and paste. Easy and short sighted