Yr right, of course.
Beats "I'm a celebrity, get me out of here" (unless the "celebrity" is Tony Robinson, and the "here" is a big hole about to be filled with a giant timber post). ;0)
Would have been good if they had discussed some of the other comparable big, timber posted henge monuments like Mount Pleasant etc to see if there was any support for their theories there.
Funniest thing was watching the squaddies building the timber circle 'replica'. I bet thats not what they signed up for!