Should healers now be allowed to play how they choose to play?

[Llus]

that last part of keeper of the lake is suicide to dps healers until they understand what to do, ive both failed it and pulled it off perfectcly. You never go to clerics if the pull is too heavy. First thing i noticed is "why are dps dead alread....oh shi everyone wiped" I appreciate the video but its happened to us all. Like a tank, if you dont know what to expect, you cant just dps swap the fight. and if dps are dead, thats a lkonger time before mobs are dead.

The healer in that video was experienced with the fight though. The healer made a mistake by casting a second holy instead of topping off the tank; but the tank is really the one to blame here because he had no mitigation up the entire time; didn't self-heal and didn't get a holmgang off when he saw he was in trouble. The healer COULD have helped out with a regen before the pull; but that wasn't necessary - even a bloodbath would have kept the tank up long enough for the cure 2 to go off.

/edit - just saw your edit including the tank fail

You're right, the healer shouldn't be blaming themselves for that fail. The tank was ultimately the one missing key mechanics here (read: mitigate damage during large pulls)