What would prevent 0/1 Healer clears of content?

[Zolvolt]

The fight was just a bad design. Wasn’t focused on AoE healing and mitigation, lack of a bleeding debuff so able to survive it with single heals is just bad design.

this is litterally 90% of fights. They always design fights like this. The only reason people don't run 1 or 0 healers more is because its not the default parsing method on fflogs.