Ouch. Yeah, but these things can be countered by direct experience ("Oh, when I push yes I move to the healer's position..."). Even if they choose not to.
The res invulnerability, however, is much harder to notice. A lot of people, as soon as they're back on their feet, immediately try to DPS/heal/etc. For some fights that's OK, but for the ones with a lot of raid damage, it would be nice if there was a cue along the lines of "Oh, I can wait for the healer to get a cure II off."
Some people still won't learn, but it will be a lot more obvious to those that are willing to learn, I think.
