User blog comment:Mangetsu20/Mangetsu Reviews: The Hueco Mundo Arc Part IV/@comment-1493741-20131023212249/@comment-4326112-20131024003823

Just because you planned something out very well, doesn't mean you aren't susceptible to arrogance. The fact that he entrusted it to her, must mean he was so certain that she wouldn't make such a brash move just due to the kind of charisma and threatening visage he had.

But then again, knowing Kubo, if that had been the route taken, Aizen probably would've hidden the real Hogyoku in a test like manner, to keep Orihime from destroying the original.