This has been discussed elsewhere, including the parallel thread in the military forum. I don't have a copy of AH's display sequence, but the organisers of the show will have had. They, and he, would not have been 'confused' as to what was planned.
The relatives of those who died and the injured survivors have a right to know.
And they will be afforded full access to the entire findings of the enquiry.
from the AAIB website:
treating the survivors and relatives of air accident victims sympathetically, helping them understand what happened and what’s being done to prevent future accidents