because he's gonna replace them with magic fencers since everyone including him and those who joined only in 2016 have horus and charlotte and therefore saki = useless.
also because he has azami therefore saki is useless since azami can do everything saki can do (except the truth of the matter is that she actually can't). also because a unit is only useful if she doesnt need to be maxed out.
now if only our blacks actually have their pre-AW passives implemented.