Why is DRK so squishy and how do I stop it?

[Rufalus]

I do /feel/ squishy as a DRK compared to my Warrior and I'm trying to figure out why.

For what it's worth, I remember feeling the same way when I was leveling DRK, in leveling gear. I think most jobs feel a bit subpar at first compared to ones we've been using longer. Warrior is also legit overpowered with its utility, dps and self recovery all being strong. But on a purely survival / mitigation check, I think Dark Knight is fine and similar to the other tanks. If you die whilst using all the tools at your disposal then it's probably a healer problem rather than the DRK job design.