I planned to attend that one too but other obligations intervened. The PA-11 belongs to a friend of mine from Ohio.
That is not a particularly difficult airport to get into, but the narrow valley it's in and consequent adjustment to the landing pattern makes less experienced pilots uncomfortable. It is possible to make a steep straight-in approach to runway 31 over trees on higher terrain, but it is easier and safer to make a slightly curved final approach over the river. This also spooks less experienced pilots.
Watching the video, the pilot had the airplane in a good position over the threshold if just slightly fast. The problem may have been initiated by being undecided whether to do a three point or a wheel landing. This is always a set-up for problems, because the resulting arrival often results in a bounced landing. However, the bounce itself does not automatically result in a loss of directional control. While the airplane started into a ground loop, the entry was not violent and was certainly recoverable. If you watch the flight controls on the Maule as the accident progressed, you can see very little input was used to correct the left swerve. It may be that the pilot was a bit overwhelmed to start with and the situation deteriorated faster that he or she could keep up with. Somewhere in there, they transitioned from being a pilot to a passenger.
Tsquared brings up a very good point. I often see people standing very near a runway pay no attention to arriving or departing aircraft. I have watched the sporty results of a blown tire or loss of control on the runway on several occasions.
