Healers that don't want to DPS are like DPSes who refuse to move out of AoEs.

[aleph_null]

This is a double edged sword here. SE has put in the ability for healers to dps but don't actually factor in healer dps when making/turning content.

In which case healer dps could either help a group clear a content while having setbacks (undergeared, mistakes/deaths, bad group compositions), or simply make the run faster.