The chapter was very meh to me. I know that the arc is just getting started and it'll probably pick up in time, but it feels like the chapters of the last few weeks could have easily been condensed into one or two chapters to me. As for the whole "They can Bankai" line, it doesn't have the effect that it probably should for me, no matter the meaning. If it's supposed to mean they can use Bankai, than it's not really that shocking given that the very concept of Bankai as this great power has started to wear down for me and it honestly doesn't feel like that big a deal anymore. If it means they can cancel Bankai, than that would probably be something important, but all we have is people SAYING it cancels out Bankai, without ever actually seeing it happen. The one time it's been used, it failed, so it doesn't feel all that threatening.