Nothing uncanny about it at all, Icemoon. While I was at 1 CDO,
I had the chance to watch these guys train, and I can tell you that
they don't muck about. Rest assured that we're up there with the
best of them. Without going into too much detail, the current SOF
commander topped the SF course in the US, beating even their local
trainees to the top spot. This officer was one of several men in my
NS company who went to SOF, and I can tell you firsthand that they
are in fact that good.
The truth, I suspect, is somewhere between the two options you have
listed. In carrying out the mission, I don't see anything that the
SAS, GSG9 or Delta could have done better, but on the other hand,
the situation wasn't complicated by the terrorists possessing
automatic weapons or remotely detonated explosives.
As an analogy, driving safely to the office and back doesn't
automatically make you the world's best driver, but it doesn't rule
you out either. It's just that the circumstances are inadequate to
prove either conclusion.