OK, I researched it and I stand corrected. Minimum separation in Blue Angel formations is 18 inches. You consider this a safe and necessary maneuver, perhaps. But do you know it’s forbidden to other Navy pilots? Along with a great many other maneuvers that are routine for Blue Angels, but will otherwise get you grounded? Sorry, I am not buying the “training” line.
The 26 pilots who have died in the last 65 years in the Blue angels were sacrificed because aliens living at area 51 have demanded that our pilots fly high powered supersonic jets 6 inches apart at full speed and in formation before they will give our pilots the keys to their space craft.