The Blue Angels were formed in 1946. They were led by Butch Voris, a WWll ace. He selected Pacific War vets to join and train with him over the Florida Everglades. He chose this venue because, in his words:
"if anything happened, just the alligators would know".
These guys would have spent more hours hanging upside down in their cockpits, than lying horizontal in their beds.
No one can argue that an airline pilot with +15k hrs is anything less than experienced and/or is not a professional, he is paid to do the job for which he is qualified and trained for. But there are limitations to other flying work he or she may undertake, such as an annual limit, used to be 900hrs as I recal, perhaps fudges such as non P1 and few other here and there, but would not amount to anything significant. How then would one go about practising and practising more for aerobatic displays within the constraints of pilot and airframe time for old aircraft and the capricious UK weather.
I am afraid in this instance, even if the AAIB conclude it was some technical reason attributable to the aircraft, it may be difficult to escape the crocks, now at the knees, from reaching even higher.