Honestly, healbotting will never be viable unless they just flat out delete any dps buttons healers have in instanced content.

Even if the boss is constantly dishing out 100,000 damage every auto there's still going to be downtime to do damage, even if it's just slapping the boss with a damage spell as soon as they become targetable after a phase change, or having the paladin pop hallowed just to give the healer 10 seconds to start dpsing.

SE should just move on from trying to get healers to focus on healing more and shift their focus to making healers actually fun an engaging to play again, regardless of skill level