Brings back how tragic this was. The report can be read in several ways but my opinions are as follows
I don't believe Mr Milligan was aware no kill cord was being used, the report suggests he left the helm to go to stern (I assume to untie from the pontoon) whilst his wife went to the helm to prevent kids from hitting the throttle, not fitting kill cord as she wasn't expecting to drive, just protect. They then proceeded to return to mooring, from personal experience I can imagine a scenario where she offered it back and perhaps he said "no you take us in darling", him still unaware no kill cord was connected and her forgetting to fit. Obviously they then changed their mind and wanted one last blast.
During this fateful manoeuvre perhaps he might not have been "reckless" as other posts suggest in doing this extreme turn, maybe he was trying to take avoiding action to prevent hitting the beach, as his wife had became concerned by. This wasn't a family being wreck-less, or at least not intentionally, they had all the gear, undertaken training, previous boating experience etc etc. They were not the typical "boy racer" we usually lambast on here.
The manufacturer used a way (completely legal) to increase the HP rating using different legislation. What could have been rated to 303hp in one way, was rated to 453 using another. Something which has been advised as requiring action to clarify in the report summary.
The hull design had been highlighted as a concern previously.
My final observation is regarding the lack of kill cord use. It appears to be more common with RIB users than other watercraft. The report highlighted several fatal incidents, all RIB related. Perhaps this is more of an issue with the kind of people who use RIBS (with higher consequences due to the type of boat) more than other boats. Just like we all moan at Jet Ski's for driving crazy, speed boats for no life jackets, yachties for everything etc.
Just my thoughts.