Nonsense. The context is incorrect.
We always talked about doing it for "people bowling" or would you assume M&D did it for fun to watch people get crushed?
Of corse coaster can derail, but it is so rare you wouldn't notice it in PC or the work for translating it into the game is wasted time.
Also a new coaster would simply never derail. God only knows what state that one up in Scotland must have been in for this to be possible, but safe to say at least one component must have been so worn that it doesn't really represent the condition it would have been in during testing. Also surely wouldn't be in a condition that would meet the design spec of the ride. Something must have been very far from it's correct and healthy state.
The real confusion for me though is that the ENTIRE train left the track!? I can accept that some very poor inspections/maintenance could cause a single wheel assembly to fail, and that in that split second the forces involved would cause subsequent damage to other parts of the train, but frankly I'd expect the trains carriages to break apart from each other ahead of the entire train leaving the track. What this actually means, is that the carriages of the train were better attached to one another than they were to the bloody track [blah]
I can't see any real clues in the pictures, it's all very bizarre. I bet up close most engineers wouldn't take very long to figure out what happened and why. I'm certain some people at the park must have figured out the lightly cause unofficially already.
Maybe a mod could split these posts into a new thread specifically for this incident?