Healers tanking low level dungeons

[ThirdChild_ZKI]

In low level dungeons, what makes a tank a better tank than an archer? Same gear available, slightly more HP. What makes it less efficient for the group of mobs to be spread around hitting multiple people while whispering dawn regens everyone in the party?

Remember this in Heavensward when Astrologians and Machinists rush in and bypass Dark Knights, regardless of level. Remember these exact words.

And let there be no complaints.