It does look to me like a rider's error. Not sure why some seem to think that the police are to blame.
Because some like to have a go at the police. It makes them feel more competent than they actually are. Like schoolboys calling a disciplinarian teacher behind his back. When they get older and mature (some of them at least) they come to realise how right he was.
The threadstarter and co have done what many people do, passed ill-informed comment. It seems that the stop was a set-up and was expected, which illustrates the point that old men shouldn't try to reclaim their youth, especially on powerful motorbikes.
The incident does effectively make a point though.