If double AST was meta, then you’d see it more frequently. But somehow...you don’t. Besides, blowing all of your big healing and shielding CDs at the same time would be a horrible use of resources in any serious encounter. It would make some mechanics too mitigated, and leave others with nothing. Nice try, though.
The developers have had 3 expansions to get Nocturnal Sect “right”—or the hybrid aspect “right”, if you’d rather think of things that way. They have failed each time. The duality/hybrid nature of AST has always been a balancing nightmare: make it too strong in one sect, and you oust the accompanying healer—especially when you factor in AST’s rDPS gains. Make it too weak, and AST is ousted (see early ShB and how terrible both Diurnal and Nocturnal AST was in terms of healing versus WHM and SCH) or one Sect becomes staggeringly superior (this has been the case with Diurnal versus Noctural for ages—even after countless buffs to Noct to make it “better”, Diurnal has always been the more MP and resource efficient of the two. Even now. This was an inevitability, and it has very little to do with people being “scholar lovers”. People that see this are just being realistic. And understanding the struggle this job has gone through in terms of balancing for 6 years.
The issue here is getting it to crit on all party members. Whether or not an Aspected Helios crits is RNG. It will crit on some party members, and not crit on others.