My argument is that if someone is fulfilling their role as needed in the game, then extra actions they take on are personal choice and it's unreasonable to try to make it a requirement or insult them if they do not feel comfortable taking on those actions. There's also the double standard that a healer is required to fulfill other roles, but tank and dps are not required to fulfill other roles. Yes, healer dps makes a run faster. Yes, it is nice when it's something a healer feels comfortable doing. No, I'm not going to call them lazy or accuse them of being carried if they are not comfortable taking on those actions. That creates a toxic community and does nothing to foster party goodwill.