I've never paid any attention to that particular statistic since going to "jail" is really a part of the game and doesnt really (to me) represent any valid or accurate gauge of well.. anything.
Of course I do not see the game as a PVP arena, since that genre is (IMO) way over done, and way better done in other games/genres.
Anyhow, its possible that the feature the wiki represents is dated. Hoping we can get things caught up over there (all the standard quests, etc) and then work on some more of those fine details and updating areas that are now "dated".
As for deaths in PVP counting... why wouldnt they. Its your pirate, you died. Another mark on the wall...
