Having served in the military in one of the intelligence services, I know one thing for sure: Everyone working in Area 51 would have been on a “need to know” basis. So this engineer would have had first-hand knowledge regarding ONLY the specific work and specific projects that HE was assigned. If secret UFO stuff was going on in some remote area of 51, unless this engineer was ASSIGNED to THAT specific type work, he would not have a clue as to ANY of it. So his dismissal of UFO activity, plus $1.50 will get you a cup of coffee at most places, other than Starbucks.
No ONE person at a sensitive area knows enough to explain much at all. There might not be UFOs there, but there sure and the hell is not a guy who can explain anything in total.
You are ABSOLUTELY CORRECT, OF COURSE.
THANKS.