This just wouldn't work at the level cap in expert dungeons as things are. I'm sorry, but you simply do not understand how this game plays at a vaguely competent level if you genuinely think this is a viable option that isn't basically just you believing that healers are purely there to simp for you whilst you play the 'hero'.
Here's why:
In the first Paglthan log I have to hand on WHM, I cast 32 healing GCDs (14 of which were mid pull regens) and 18 healing oGCDs. That's over a 13:08 run. That works out to a button press every 24 seconds.
My CPM in that run was a little over 22, your suggestion would drop it down to a little over 2. Time to load up Netflix. Feel free to /yell and <se> spam if you need a heal, I'll be watching the second screen![]()