Because an independent researcher called the NAS and asked them.
The civilian FAA was also called and the same thing...nothing.
However the helicopter lift off time and location WAS confirmed by both the Air Rescue company and flight tracking software.
The entire mystery missile launch was resolved in 24 hours...until internet jokers like you came along.
Interesting theory.
So why did independent researchers and FAA people investigate if nobody saw anything? Your two theories don't jibe.
Reconcile.