His experience is interesting and valid. His conclusions were anything but. Most notably, given the US govts well documented history of experimenting on members of the military, which seems more likely: a) That (as he clearly believes) intelligent aliens with anti-gravity and necessarily ftl drives cross the vast chasms of interstellar space to buzz some aviators or b) that this was the result of either a natural phenomena or a psychological experiment on the airmen themselves. When we eliminate the almost certainly impossible, a whole range of improbable but vastly more likely alternatives present themselves.
There were two jets there with two people in each. That's one hell of a psychological to pull off to get them all to see the same thing.