Why Crit for tanks?

[Seku]

Because the game doesn't throw anything at tanks that requires them to take defensive stats so killing faster is the best way to go. Can't really think of any mechanics in recent history that has wiped the group due to them not having enough HP / defense, but there are multiple accounts showing how groups wipe to enrages due to not having enough DPS.

Reason 2 is that no mechanics require additional defense outside of the standard tool kit a job has.

Reason 3 is that the rule of having enough defense and then put the rest into offensive stats is and probably will always be a thing. The amount of defense directly correlates to the amount of forced damage you take and the mistakes you make. Can be applied to just about any game that has these stats. The same can be said for accuracy, even though this stat no longer exists