-"Removal of one of two white magic spells"
Red Mage has six white magic spells: stone, stone 2, aero, aero 2, cure, raise. I'm personally for compromise, verraise should be restricted: a 2 minute cooldown with 2 charges. As well, make it ogcd to emphasize RDM strength to weave abilities between spells. The other end of red mage is it's not supposed to be better at white magic than white mage and yet it obliterates white mage with the raise spell. Maybe this would be an ok compromise.

-"Can't or won't do job"
Queueing as a healer likewise prevents healers that can't or won't do their job.

-"All other content"
For better or for worse things trickle down from the top.