This can be said about any plane though... hell I can cherry pick and win in p40b.... I just need a bit larger of an e adv...
Except the Spit16 is a high-performing plane which overlaps both the "speed" category and "maneuverability" category.
Many people have a tendency to brag about how they can out-perform a certain, superior plane with their skill -- except in reality, they really didn't out-perform a superior plane. They simply out-performed an inferior pilot. Rarely do they come to these boards and mention those times where they've met a pilot behind a Spit with about equal, or even superior, skill level, and how the superior performance of the plane, coupled with a pilot as skilled as themselves, simply wooped their arses.
In that sense, as mentioned above, many planes have very distinct and defined weaknesses which may suit them in one situation, but not the other. However, the rare breed of planes like the Spit16, are excellent in so many ways that if you really think about it, there's no reason to assume that the specific plane would be an easy kill.
The fact that a usually inferior, newbie-grade pilots are behind its controls in the MA, doesn't really adequately compliment what that plane can do.