I've always been bothered by this on Nocturnal Sect astrologian, aspected benefic is not so bad but aspected helios seems to take foreeever. I remember doing Sophia extreme I felt like it'd only barrier two of the three raidwide hits in a row due to the delay.
However since Dark Knight got Blackest Night this delay has been the bane of my existence, causing one to have to predict every little last thing in an entire fight ~5 seconds ahead on the nose or else it's wasted. I don't think it'd be that unreasonable to have shields in general last longer so this snap prediction isn't so awkward.