And thus we have the problem with how SE does Noct Astro. Back before 3.3, there were only 2 logs of A8S with Whm/noct astro since it was pathetic compared to whm/sc and astro/sch. Come 3.3, we see what SE started to view it. SCH would be more flexible (deploy tactics, emergency tactics, fairy buffs) while Noct Astro would get stronger shield to make up for this lack of options(when aspected helios got buffed from 100 to 120 percent and making it stronger than succor by 15 percent much like how it is now). Next, comes patch 3.4, where they buffed the shielding of the noct astro up the wazoo, the noct stance getting up from 5 to 10 percent, 130 to 170 for aspected benefic and 120 to 150 for aspected helios plus the cards buffs which kinda render it moot though. 4.0 they make aspected benefic about 37 percent stronger with the change in shielding and aspected helios being 43 percent stronger before the buff to succor brought it down to 15 percent. Edited for limit.
As we can see, what SE's problem is with Noct Astro is that they only buff shield potency. They don't try to make it different to play, they don't add effects to the shields themselves. cards don't get any bonus under noct etc etc. Their go-to solution for noct astro is to make their shields stronger and nothing else.