Yeah, I was actually expecting the captains to get Ichigo as far away from the fighting as possible at the moment - he's in no shape to take on Aizen. And how is he supposed to keep from looking at Aizen's shikai?
Looks like Byakuya has some doubts, at least.
Oh well. Looking forward to the Mayuri-Byakuya interaction, and more Unohana :), though I'd really hoped we'd see her fighting soon.