You know... I don't agree. If you look back through all of RMC's previous material for these rides, not a single one showed anything like the amount of speed that this one has. I can't believe they'd have done all that work on the graphics without having the speed dialled in - after all their modelling is usually pretty good.
Not saying that it's not safe, and won't be perfectly fine running like that for it's lifetime, but I reckon if RMC were asked about this "off the record" they'd say it was quicker than they expected it to be.