What would prevent 0/1 Healer clears of content?

[AmiableApkallu]

If the problem is (and it has been stated to be or include, owing to them being used as "evidence" in support of it) that 0/1 Healer clears of content are possible, then the solutions need to address that first and foremost. Further changes can be considered for other issues once that is resolved, but if that is the (near) universally agreed upon problem, then the solution(s) to it need to address that.

I think this approach focuses on a particular tree and misses the forest. All of (1) - (6) are about healers wanting to feel relevant and wanting to have fun. The zero healer clear of TOP is, my two cents, a gut punch that highlights how not relevant a healer can be in content across the board. As I myself put it:

There's a simple reason why MSQ content and similar being clearable without a healer is a problem:

When you are that (sprout) healer, and you die, and everyone carries on without you well and fine… it just feels bad being shown exactly how unneeded your skills and presence are.

And in that framing, it's not actually necessary to guarantee a wipe if the party tries to go on without a healer. It's enough that the party simply not leave the healer for dead. Which, given that this is MSQ-level content I'm talking about, I bet it'd be enough to implement some sort of in-combat Phoenix Down, because I bet most parties, if they had the choice, would rather have the healer alive than dead.