User blog comment:Jallu/i don't get it/@comment-1387259-20131025204108

Simply fighting a Quincy with the powers of a Hollow isn't enough to "poison" them. The Quincy in question actually has to be fused with the Hollow's powers, which is what the Shin'eyaku was doing. At best, this means that the Sternritter cannot steal the Bankai of a Visored, but now that they've gone all Vollstandig, it's unnecessary to even try.