Overall while I agree, I am not holding my breath but I do agree. That being said, I would argue that the access to so many rez options while in combat has done more to trivialize content and would rather they just got rid of them from every class that is not a healer and limit it to something like a 10 min cooldown on healer while in combat.
We have already seen what happens when they give roles skills that impact the group that appear to have minimal impact players will just ignore them altogether. To a degree that is what lead SE removing any semblance of aggro management players would not use their aggro dumps, so they shifted from making aggro a group effort into solely the tanks effort.
Even when it comes to CC, if we are being honest only reason we used hard CC like sheep or traps back in the day was because we were bad at the games. Even in classic WoW content were we would use traps largely just boiled down to let is unga bunga it stacks AoE and burn it down if we need to control we will use soft cc like slows and stuff.
For what it is worth and I know people dislike this take but I do think FFXIV is just going down a more causal path that may no longer cater to players that want to be engaged with the content outside of prog.
Edit: This largely boils down to two mindsets. One do you feel it should not be possible to map something out to the point where certain roles it was balanced for are no longer need. IE: 2 tanks 2 healers 4 dps or do you feel that it is okay for people to push the boundaries as to what is possible as so long it does not replace the standard that the content is balanced around.
Personally I do not see much an issue cause overall for most players a healer will always be preferred and needed to clear content. Now I do agree it would be nice to have fun with my role outside of prog and people playing poorly but alas I do not see SE changing that up anytime soon.