I want to also point out that a Nocturnal Sect AST and SCH comp has always worked ever since they buffed the base shield from Aspected Helios. It functioned much the same as the current SGE+SCH comps, the Noct AST casts Aspected Helios if it's needed and the SCH Deploys if there's big damage.

The only comp that has consistently never worked out is Diurnal Sect AST and WHM. In this design of mitigation being king, WHM really does feel massively lacking in the mitigation/shield department. At least AST has Neutral Sect and Collective Unconscious to fall back on.