I’ve mentioned this on stream on several occasions before, looking at the data all throughout the 3.0 series, people who have been playing as a tank or healer whenever a new expansion is introduced, they will first try to level their main job, and we did introduce the Dark Knight and Astrologian as tank and healer respectively. The player population didn’t seem to change too drastically…
Yoshida, that's because you started them at such a low level. Drk/Ast/Mch should have started at 50. Sam/Rdm should start at 60. Period.