You don't have to be so mean ^^"
I think he is right about N. Stance, while Diurnal allow to replace a WHM easily when you are paired with a SCH ; Nocturnal makes you work extra hard in your mana management, stance dancing etc... to reach SCH level when you are paired with a WHM.

Seriously, in my static, my co healer is a WHM and she doesn't want to dps, so I take the role of SCH and I know I'm making her work harder because I don't have a fairy if I want to go N. Stance. Plus, my dps is worse and the cards not always make up for the loss of a SCH. The only time I'm happy with N. Stance is in A2S, where she is DPSing while I'm healing because this way, we don't use HoTs and tanks are happy .

So, imo, keeping AB on the tank/AH on the party in Diurnal, and +5% attack speed is way better when you take the role of an "off-healer" or "DPSing-healer", making Noct a bit... "not bad, but not good".

But please don't take this post as a complaint, I think AST is fine too, I enjoy my AST a LOT and every healer comp can clear savage... I just think Noct need help in terms of DPS.