TL;DR: Either remake sheet damage or remove it. What's the point of a measurement if it gives you wrong information?
The DPS, Toughness, and Healing stats are all meant to be general, quick evaluations of your character's power. While you will have a better grasp of exactly what your character is capable of by more closely analyzing your individual stats, these overviews are there to provide this information at a short glance. Similar to the green or red Damage/Toughness/Healing estimations that show up when evaluating a new piece of gear, scrutinizing the details will give you the information needed to make those more precise gearing decisions.
For players that wish to focus a little less on min-maxing, though, those stats are there to provide a sort of surface check. We're certainly open to feedback on how we can improve on these stats, and as indicated in our Patch Notes
, we are keeping an eye on the stats that weigh into this to make sure they're properly indicative of the amount of benefit they provide.
Bear in mind that some stats are much more tricky to incorporate into this kind of system, with bonus damage versus Elites and bonus Skill damage being good examples. Stats with an orange diamond adjacent to them are not calculated into DPS, Toughness, or Healing, and should be independently considered from these overviews as a result.