I am not sure what to say, I think we have a very different way of looking at things. If I am main healing, and let's say doing 0 dmg, and the group is failing DPS checks - I am gonna feel awful. Is it my fault we're losing? Probably not, but you don't have to be a part of the problem to be part of the solution. And I want to help the team win, so I am gonna try my damndest to at least reapply Combust every 30 seconds. My team needs more damage to win, so I am gonna try to give them more damage. You're so worried about showing whose faults it is...who cares. The goal is to win and you are doing 0 dmg (hypothetical here I have no idea if this was the case) while your team is failing a dps check. Any healer at 0 is leaving damage on the table. Help the team win, help carry an underperforming dps. Quit worrying about whose fault it is. Try and put them on your back if you can - be successful.
Because in this game the amount of damage going out is small compared to potential healing output, and it is 100% patterned with fixed timings (in 3.0) it is very easy to dps while healing at least a moderate amount. That's why it's sort of become required. Because of how easy it is to do, a healer not doing it, assuming the group isn't derping left and right and the healer is familiar with the fight, is either stubborn, unskilled, or lazy.
