Technically speaking, there is no "need" for you to do a lot things in this game. Heck, even the way you are moving your character can be widely inefficient and cost upwards of 1 minute of a run in comparison to someone who might know the map so well that they play faster cause they get to everything and DPS everything those few seconds sooner.
Someone who has the skill to achieve things can and will do so, but my view is that in this case, I don't see a Healer not DPSing as a terrible plight against how you should play your character and to that end, we disagree. Not just that, but a lot of people simply just don't have the nerves to pull this off or even efficiently, the expectation when the game isn't designed around it intentionally I find to be having too much expectations of what someone can and will do in PUGs.
Actually, just because you are capable of doing it doesn't mean it isn't technically disruptive or even subjectively to someone's gameplay. Even though I play around Cleric Stance all the time where it's second nature, I actually find it cumbersome each time I have to stance dance even though I can easily execute DPS and swap and heal, or when I make a mistake, throw a Benediction. Even in that regard I dislike the idea of "Cleric Stance" and feel that if it didn't exist, a lot more people would be comfortable DPSing as Healer.Weaving in DPS while you monitor the fight is not disruptive to anyone's flow of gameplay if done correctly; there is a reason why Cleric Stance is an oGCD ability. When there is no need for consecutive healing actions, it should become natural to fill the time with supporting DPS.
It was relevant in regards to their opinion on pretty much "Wow, can anyone tell me how just Healing in a game is enjoyable? How can you enjoy Healing without DPS? It's boring.". And regarding "standing", it's not merely just standing to that person, as stated previously if someone is healing and aware of their surroundings and are trying, even if they muster less moves it doesn't mean it's merely just standing mentally to them. A lot of people misconstrue how most of us who post on these forums are actually widely more efficient or better at the game at the majority of players who play and consider that to be the norm when it clearly isn't the case.Also, whether or not one finds using attack magic to be "dull and unexciting" is irrelevant in the context of gameplay discussion (even though I'm not sure how standing still beats attacking in terms of excitement). It's objectively true that, in this game, better healers support the party with their full kits; a "healing-only" healer can never meet their full potential. While it's possible for a player to be great at healing without contributing DPS, it is not possible for a player to be great at the healer role that way.