This accident has nothing to do with trailering or power loading.
The specific sandbar has become the scene of almost weekly incident or accident ranging from booze induced slip and falls to jet ski or boat collisions.
South fl law enforcement need to get their act together and crack down on stupid behavior starting with boats that end up getting stuck when the tide comes down as it is reckless operation. I have seen guys trying to power off in full view of USCG, dade county, key biscayne or coral gables patrol boats, throwing large rooster tails.
Overall things are getting worst here in so fl, too many boat operators acting recklessly, running with no or missing lights, etc...
In this case there were not one guy near the props but 4 on one side! There may have been more on the other side not seen in the picture, such level of stupidity is just mind boggling