User blog comment:Xilinoc/Ch. 545 - Blue Stripes/@comment-2211792-20130709150618/@comment-5398287-20130709205358

Here's the thing. To my knowledge, the Quincy destroying souls completely only applies to Hollows, since those require a specific type of weapon to be sent over to the other side. Souls in Soul Society, upon death, are reincarnated in the Human World.