I guess we all just assumed based on the fact that DCR had both trains backwards that ST would be the same.
Its disappointing - i'm sure it was mentioned a while back that if it is only on one train, then when that train goes down for maintenance, they won't be able to offer that experience, but the slight increase to capacity, as well as the ability to ride the 'actual' back of the train for a different airtime experience as well makes for some good re-rideability as you can get a different experience at the 'very' back of the train.
I can see issues for people who want to wait for the very back of the train though, but it will be disappointing if Dreamworld don't allow that.
While I see the silver lining, its pretty shit that they only got one spinner, and chances are it won't be available half the time in off peak simply due to cost-saving measures as they balance the wear and tear on each train. I wonder if they will actually list which train will operate on any given day on their website or whether you have to wait until you get to the carpark?