So finally, after about a decade of leaving healers unbalanced, blizz seems to finally be taking action:
https://ptr.wowhead.com/news/9-2-ptr...t-buffs-325675
I guess the idea is that holy priest and druid are now huge throughput specs and paladin, disc and shaman are the utility specs (and I think everyone forgot mistweaver exists lol). They also buffed druid/holy damage and nerfed paladin, but the buffs and nerfs are about 20% of what they would need to be to balance out the damage.
Personally, I still don't think this works because utility that prevents deaths (like shaman has) is just better than throughput most of the time. Maybe on the very cutting edge when you need every scrap of healing, druids and holy priests are now better, but the game hasn't been about hps for a long time.
So yes, they are recognizing the problem, but the fix doesn't seem to work.