Can someone explain why even the most top-tier SAMs aren't using Seigan very frequently? Even on fights like O3S where there is frequent, predictable AoE damage going out, they rarely use this ability more than 5 or 6 times per fight (many of them not using it at all). Some quick math says it's a more efficient use of kenki than Shinten (13.33 potency per kenki vs 12 ppk), and yet even the best in the world don't really bother taking advantage of that.

I always figured that exemplary usage Third Eye + Seigan would be one of the things that separated good SAMs from great ones, but should I really even bother having it on my bars?