If you watch the clip it is obvious the skipper missed the well marked channel and decided to head for a warning marker. If you check the navigationcharts there is an obvious channel with shallow bars to either side. Not saying I am perfect as I did something similar in the Hawkesbury a few weeks back, but at least the reversed channel markers at the particular spot aided my mistake. I was cautious enough to back the revs to nearly idle while I tried to make sense of the markers and in future will be having a decent look at the charts before the next leisurely arvo cruise in unfamiliar waters.
It is a pity to see people get hurt especially the elderly who tend not to recover that well. Regardless, as a lawyer I was involved in more than one successful personal injury case based on negligent navigation in the same waters involving high powered pleasure craft. It seems to me that in the wrong hands these vessels are effectively dangerous weapons?
__________________ Life is a shipwreck but we must not forget to sing in the lifeboats. - Voltaire