Why is Astrologian so misunderstood, even sometimes by other healers?

[Seraphor]

Yeah I remember leveling AST through ShB and every tank would make baby pulls and I'd write everytime that they can go big, I can handle it. Some were happy to oblige but most answered something along the lines of "not with ast sry". But when I went in with WHM/ SCH they were all like "pull everything up to boss yolo" without even asking.

I levelled AST right the way through ShB before 5.01 and it was perfectly fine, big pulls and all.
Everyone complains that healing is too easy now, but it seems they can't handle it when it gets difficult.