User blog comment:Xilinoc/Ch. 562 - THE VILLAIN 2 (Mask De Masculine is a Mexican luchador in a German army)/@comment-1351982-20131218031243/@comment-28861328-20131218063744

Even that doesn't explain it. Shinji suffered the same time out of action and nearly killed Grimmjow without even breaking a sweat. Factor in the fact the Visored single handedly took out a pack of Menos Grande, some with their bare hands, and then assisted the captains in killing the top three Espada, and it really puts things into perspective.

Now you have two of these aforementioned warriors using their Bankai. They shouldn't have even had to use Bankai, but ignoring that fact, the fact that they had that level of skill and used their Bankai should've been enough to tear Mask into an unrecognizable mass of flesh.

Kubo purposely dumbed them down to allow Mask to win. That's all there is to it.