Bosses/Adds attacking only one dps. Logic or spit in the face to others?

well as long there is no Npc that is true but when was the last time we run group content without an npc "helping out"? healing of npc screws the healing numbers on scoreboard.

Clearly not that experienced with Electric healing otherwise you would know this is false
a good healer will have active HOTs running - a good healer will try to have multiple HOTs running at the same time - then the healer can use a shield and try to revive.

I wasn't trying to pick fight..mostly pointing out to others, just hit reply to you that there is info.
Sadly like guides going back to Yoda Dog's Electric, Battery's no weapon controlling, Omarr and others...we the players have had to do most of this ourselves.