All that says is that the jail time wasn't long enough to offset the benefits of defrauding thousands of people. That's the fundamental problem. Jail is meant to be a deterrent for crime, but if it's still net beneficial to commit the crime and go to jail, then it's failed.

Given all of the current and impending geopolitical tension (Russia v Ukraine, China v Taiwan, N Korea v everyone, etc etc), I wouldn't be surprised if the US has been ramping up testing of their top secret aircraft tech over the last couple of years.

Been to Japan and they have all sorts of weird, futuristic and cool stuff as part of their public infrastructure because it's not always built by the lowest bidder and/or to save cost, and money is actually spent to maintain it once they're in service. The lack of that mentality, as well as higher rates of unnecessary vandalism, is why a lot of Western countries can't have nice things like that in public.