Dawntrail's mediatour dungeon was already cleared without healers.

[Rekh]

>Just wait until skill showcase, it's not going to be that bad

>Just wait until live letter explanation, it's not going to be that bad

>Just wait until tooltips release, it's not going to be that bad

>Just wait until early access, it's not going to be that bad [YOU ARE HERE]

>Just wait until savage balance patch, it's not going to be that bad

>Just wait until next expansion's skill showcase, it's surely going to be better

>Repeat from start

Reminds me of "wait for stormblood release to see if you should complain about the lillies system." Haha.
Never wait, tell them early and tell them often that they need to change bad design.