That Boeing design just flat fell short on too many areas. It was simpler, yes, but it was also nearly entirely wrong... or poorly thought out.
I'm not Lockheed fan-boy, but when there are only two choices and one is just a total WTF moment, the other will win.
"After reading through this thread I've come to the conclusion that more people cruise the internet looking for reasons why X bike won't work in Y scenario rather than actually riding their motorcycles." -- RyanR