I don't think that analogy works that well, because the only similarities are someone not doing something anymore and someone else being affected in some way but all the other details just don't really fit including what the solution in both situations would be. like in that example the solution would be to remove the need for a person to lie in the puddle (which in FF14 context would be removing healer) which I hope is not what the people here want. The analogy would make more sense if someone sees playing healer mainly as providing a service to other people, maybe some people feel that way but that would really open up the discussion if we should remove healer if that should be the intended purpose for some. Because playing a job in a game should be because it is fun and enjoyable and not because it is a service to other people. (at least as the main part)
I think there is as well a big difference between just stopping to do something and organising something with the hope that as many people as possible stop doing it at the same time to send a message. Not that I think it is wrong to do so because of it, but I think there is then more responsibility of the effects that might cause.