Not its characteristics (which are wonderful) -- but its bottom line performance in the arena.
Its KPD is only 1.11, comparable to the 1.15 of the La-7, the 1.14 of the N1K1, this tour. Its worse than the tiffy in that department (1.47).
It is the new toy out of its box, and it has seen a lot of use. I suspect theres been some pilots migrating from Lalas to the XVI, as the La kills seen down from past tours.
It hasnt overwhelmed the MA in quality, or really in numbers. it accounts for only 8% of all air Ma kills.
Its everywhere, but it hasnt been imbalancing. I'm betting it doesnt get perked.