No not at all. However, I think that nothing is going to improve until Yoshida's team put the arrogance of their success aside for a moment and accept that the whole class design process has gone off the rails for quite some time now.
If I was tasked with course correcting things, I'd make one simple change over night. Allow Extreme and Savage bosses to continue auto attacking mid cast and up their melee damage significantly. Going forward, I'd also push for the return of short cooldown non telegraphed mini busters on bosses as well as allowing both auto attacks and these mini busters to crit.
From there, things get a lot more complex though as beyond that the healer jobs themselves need a pretty fundamental re evaluation at this stage. Personally I'd lean towards pruning and merging with the goal of replacing fluff oGCDs with abilities that have actual purpose and utility whilst shortening the cooldowns on bread and butter tools to compensate if needed.
I'm under no illusion that it would be a simple task at this point though and the biggest issue is that I don't think SE's class design and QA teams have the depth of knowledge and understanding to do it well.