I didn’t make the solo healing example, you did, I used the example of double shields being good vs double regens being a meme and how AST isn’t the problem child in that relationship because it can act as a pseudo shield healer while WHM cannot because of its excessively rigid mitigation. If regen healers were so essential then why is double shield healer such a strong comp
This game basically treats every healer as an assumed shield healer and WHM is the only one not equipped to actually fulfil that role which makes the shield healers job harder. Its theoretical HPS is incredibly niche simply because it has to be entirely unplanned as the other healers can stock high HPS equivalent moves to compensate. So why bring the “I may save you in the rare circumstance where everyone is incredibly low and it’s totally unplanned so nobody but me has an answer but otherwise I’m weaker on mitigation than some DPS” over the “I’m always useful because I actually have good mitigation in my kit” (which healer am I talking about here, it doesn’t matter because it applies to any healer not called WHM)