Personally love landing in groups with a SCH at my side when I'm on main heals on WHM. I think a lot of the frustration I've seen in PuGs is due to the large influx of new level 50 WHM/SCH that have literally only used Fate Grinding techniques to level the class. That's not to say that you can't be a great WHM/SCH if you have used Fate Grinding as your sole means to 50, its just that lower level PuGs and consistent dungeon runs really teach you how to play your class. Regen and Medica are not replacements for skill swapping and learning to effectively use Shroud, Presence, Benediction etc.

TBH I've seen a lot more complaints from nub tanks (who also largely used Fate Grind to 50) who claim that healers don't know what they are doing. I'm happy to spend any amount of time (and party wipes) working with new 50's so that they can learn the dungeon, over the arrogant 50's that think they know your class better than you do.

It's all about the skill of the player