In my view they should remove Noct as a separate stance and either:

1. Make it a CD that converts your next A. Helios/Benefic into a shield instead of a HoT (so a reverse version of Emergency Tactics).

2. Turn it into a skill you combine with Diurnal (something like Darkside) that while under effect does what I mentioned above plus some other stuff. There would have to be some sort of drawback to this of course so that it's not optimal to use all fight, but only in situational cases.