It definitely also an issue when they keep trying to do too many things at once. The mizzteq interview before endwalker show how they were trying to have it many different ways, https://www.fanbyte.com/games/news/f...sage-endwalker
They want healers to heal but they don't want it to be the only thing they do. They want to make it harder but not too hard not that it is a challenge for causals. They also don't want mp to be a hard focus either. They kinda set their focus to be too board I would say.“We have been trying to make it so that healers are required to perform more heals. The content damage that you are receiving becomes a little more intense, so that healers are a bit more busy,” said Yoshida in the interview, via a live translator. “We are trying to make it so that healers are working a bit harder to do more heals in a battle encounter for sure, and that is kind of the trend that we are trending towards.”
Yoshida did acknowledge that the team doesn’t want to make encounters so difficult that healers are white-knuckling their way through each and every fight. That would be counter to the general push for accessibility in FFXIV. “If we make it too intense, the number of people who can clear the content will be very limited. We don’t want to have a situation where somebody is just healing the whole time or have to have to manage MP constantly,” said Yoshida.
Also I will always stand by the fact that the devs may play healers but they do not main healers.