There is no way, whatsoever, that a difference of roughly 1% of party dps is going to invoke as much flaming as healers even in casual content needing to meet far, far higher relative healing requirements than are seen even in Ultimate and thereby frequently wiping their parties, so clearly the difference can't be concern for casual healers or their potentially getting flamed...
I get that you do not enjoy the kinds of optimization that go into damage dealing (as if that were ever separate from healing in XIV), but unlike higher skill ceilings for downtime activity and higher healing requirements, there is actual mutually exclusivity between [A] the current small amount of downtime tools feeling satisfying due to [a shift in] context (for a simple majority or greater of healers) and [B] having healing requirements that are still reasonably accessible to most players who would be interested in the given context.
The current amount of downtime engagement available is not large enough to support sufficient slack for less skilled and more skilled players alike to engage enjoyably with healing if offense and healing were flipped. Proportions of relevant actions more similar to what we had in Heavensward would be far more sustainable.
You've seen my own preferences, laid out quite a few times now: Much stronger relative healing requirements (though not nearly so far as 7x-or-more) atop a higher skill ceiling for downtime activity so that any and all healers can still feel reasonably engaged (even when the party is overgeared and/or makes few to no mistakes).
Note also that I haven't been okay with simply adding free damage, but have instead preferred options (choices made within the same set of opportunity cost); that is because in such cases the reward for optimization diminishes with each additional thing optimized. Whereas just adding an offensive oGCD has all the difference of its ppm directly, adding an offensive GCD action, for instance, has only its value-over-filler.
Thus far, you've pretty consistently disregarded accessibility and approachability the moment you'd otherwise get something more in keeping with your personal preferences, all while --the moment things step away from your personal preferences-- making out differences less than would result from typical run-to-run deviations from Crit RNG as if they would single-handedly wipe parties and nearly provoke harassment.