CAA Indepenence !!!
The CAA are NOT an independent input into this whole scenario, simply because 'they' were the controlling authority for most of the issues that conspired in one way or another to 'enable' this accident.
There is no doubt it was an accident, but more to the point 'was it preventable'.
One thing for sure is the least culpable part was the aircraft itself which demonstrated up to impact its ability to maintain control as far as was possible.
The requirements of both display pilot authority, and actual display location 'oversight' are both CAA regulated to the point that designated persons have a responsibility in both cases.There is no doubt that the CI input clouded the issue to the point that that relatives are still left to wonder 'who/what was responsible', and what could have been done to prevent it.The day in question was hot and that itself is always a factor in reducing performance of both aircraft and engine, however display limits are designed to allow a margin for error and the CAA require a display director to oversee operations and call a stop to proceedings if required.Whilst the original charges should never had been implemented equally the decision to proceed with the intended vertical display manoeuvre from a lower than authorised height should have prompted a reaction from the display director, and this was before any possible G factors.
So !, have any lessons been learnt that contribute towards this happening again !!, of course they have, but in the main they did so because of forums like this, not because of a trial that failed to highlight the root cause of the situation.
Whether the Coroner will be influenced in all of this rather depends on anyone who is able to offer evidence that 'de clouds' the questionable CI input, and looks at how the systems in place at the time were followed.