Probably because it was just added within the Kunark patch.

in case anyone was curious, took this statistics friday night for the higher level crowd. Did '/ count' so this includes even anon. Didnt do below 40.

Total 50 60 - 325
1 Paladin - 9
2 Ranger - 11
3 Warrior - 13
4 Wizard - 14
4 Rogue - 14
6 Bard - 18
7 Shadow Knight - 19
8 Monk - 23
9 Druid - 28
10 Shaman - 28
11 Magician - 36
12 Necromancer - 37
13 Enchanter - 39
14 Cleric - 40

40 - 50
1 Warrior - 0
2 Ranger - 2
2 Monk - 3
4 Bard - 3
4 Wizard - 3
6 Paladin - 4
6 Shadow Knight - 4
6 Rogue - 4
6 Enchanter - 4
10 Cleric - 5
11 Shaman - 8
12 Magician - 9
13 Necromancer - 16
14 Druid - 15