It is a pretty big one...being able to turn an advantage into a disadvantage
No. It's one of MANY skills you must master....all of which have equal validity and importance. Situational awareness, ALL aspects of ACM, historical tactics, gunnery skills, etc.
This is assuming, of course, one is interested in this game for the simuation of historical air combat. If all one is interested in is the "gaming" aspect, "pwning" others on occation, rediculing others who use historical combat tactics, complaining about "unfairness" and beating their chests....well....then yes, you are likely correct.