So I just finished healing another run of Stone Vigil and I could have sworn that the enemies were doing a lot less damage than they used to.

There was much evidence to support this theory:

For instance, througout the dungeon I was constantly getting aggro from the tank and on one particularly difficult pack I was getting chain interrupts, yet we survived.

Previously, pulling more than one pack would mean a guaranteed wipe. However the tank ended up pulling patrols all the time and we survived.

On the final boss getting hit by aoe (especially the line attack) would generally mean instead death. This run it was barely taking our hp bars down by 70%. We survived.

I really hope it was just a lucky run and that the place wasn't nerfed in a patch.

Continued in comments...