This clip is pretty innocuous. It's not that low, the turns are not steep, it's not too slow. By comparison with many other low level clips, it's not that exciting either - an example if you like of a very average pilot. It's also quite likely to be legal as well. The argument about whether it was wise or not is a different matter entirely and not really relevant to this thread, besides we are missing too much data to have a discussion on this. Looks like her victim in the front had fun though.
PM