SCH needs some nerfs

[Mansion]

Acting like there isn't a huge gap between AST and SCH is either disingenuous or ignorant. Diurnal AST has clears because the alternative is WHM but Noct is essentially pointless outside of encounters that you have down to a science like the linked o9s video from Mono Sama.

But in the context of AST noct and WHM, AST is still so much better in healing/DPS balance and raid utility, (and that would still be the case for WHM and diurnal AST if the fight allows no shielding).
I see your point though, you mean AST is good but SCH is even better, I kinda agree on that. But I'm repeating myself: that's because SCH is the closest to FFXIV's optimal healing gameplay, while WHM is far behind. I don't see it as a matter of overpower.