Man this argument again. There is no content outside of bleeding edge raid content that is designed around a requirement for a healer to DPS. Healer DPS is based entirely on the comfort level of the person playing the healer. If they are keeping the party healed, they are doing their job. If their comfort level is such that they feel they can add some DPS, then that is entirely their choice. The problem is that people got used to something in raids and are trying to force that idea into normal groups. It's not necessary or wanted there. If people who raid want to have those requirements in their groups, that is what Party Finder is for.

I'm going to start calling DPS and tanks lazy when they don't use their self-heals or put their own Protect and Stoneskin on the next time this comes up. They have the ability to buff and heal themselves through cross class skills. I'm too busy DPSing to carry their lazy behinds.