On watching the video, the problems started on base leg, and continued onto final, ending in a dogs breakfast of a situation.
I would venture that the problems started when the decision was taken to fly a corporate jet (albeit one designed for s/p operation), single pilot, into Oshkosh during AirVenture. Any other time of the year, no problem. During that week? That is a considerable increase in workload, and is an environment unlike any other anywhere else.
I'm sure it has been done before, and probably will still happen on a regular basis, but is it a wise choice to make? I'm not so sure.