[the.Merines]

The way I see it, Kirakishou was Rozen's final attempt to create Alice. I doubt he would share his plans with his current creations (See Suigintou? Here's yet another replacement for you). We know that Rozen scrapped his plans for her, leaving her without a body and stuck in the N-Fields. Given the huge number of N-Fields, it makes sense that none of the dolls would have encountered Kirakishou until she revealed herself or found them first.