Yes he is, but you do kind of expect it from his series'. I started watching that mathermatical one about hidden numbers in nature, and it was the same deal. I think what really annoys me about it is that you can't even blame it on just one production team, because it seems to be trend in everything ranging from those over to Andrew Marr's Megacities (the worst for this repetition bollocks and the most dumbed down piece I've seen yet) and even Brian Cox's series on the universe.
I can forgive all that for what is generally high quality, watchable material across the board. BBC3 especially is a triumph in my eyes, its got hold of some fantastic comedies this past year.
The more times they reiterate a point, the shorter the program can be, the cheaper the budget imo, its all about saving money, thats my theory. This is why on ITV when you watch these Obstacle course shows they show you the same failure from 26 different viewpoints.