A good point is made in the comments of that clip:

Quote Originally Posted by SonTyp OhneNamen on Youtube
To defend this guy: The Healer is the crappiest role ever, he´s absolutely needed, but never mentioned. I mean, i never heard "Oh god, that Bossfight was so hard, good thing we had a healer", it´s always the black mage or whoever who gets credit... But when your party fails, it´s always the healers fault.
Maybe i´m gonna build up the "The-Disrespect-against-Healer*s/Supporters-is-too-damn-high"*-party. I should totally do that.