Yes, I saw this as well. On the BBC I think. One thing I noted was that it only reached Mach 1.2. I wonder if this was intentional as Concorde and many other aircraft have proved it is possible to go faster than Mach 1.2 at those altitudes. Then again I guess if you're paying $200,000 for the experience I guess you don't want to rush.
It was just a test running of the engines not a speed run.