In reply to full stottie:
Yeah I watched it last night too, I watched pretty much the whole of the Olypmic climbing in full while I "worked from home" all day so it was interesting to see how 4 of them got there.
I thought that even following 4 climbers in 90mins there was still enough space and time you got to know them a bit. All 4 of them had compelling stories, though it could have done with another 30mins of licensed footage from the Olympics as it was a really exciting event to follow in real time.
Shame it's been absolutely buried by Amazon Prime's appalling user interface and algorithm. It was on the 4th page of results when searching for "the wall".