Watched the programme about it - thought his jumping on to the top of the imitation Arc de Triomphe was pretty impressive, but the prog was tedious in the extreme. there was much discussion on the risk of him not making the gap and falling 100' ito the Thames. Which seemed to me about as unlikely as me failing to bunnyhop a packet of Rizlas.
About the only risk was of not making the landing.
Herself noticed that the Huq stood much closer to the rider (and the other men), when taling to them, than his fiance.