Honestly, I am a bit worried that they just took a lodestone-esque snapshot. Whatever people were on at the time the snapshot happened is what they were recorded as. Also note that, being the 2014 census, it was well after the changes to Warrior happened.

But, in the end, Square isn't sharing their methodology so that does limit the conclusions we can draw...

Well, here's to hoping that DRK gets the tank population up near the 25% mark.