I think the whole point of this chapter was just a warm up act. Most people did not know about the existence of these vaizards in the first place at least that is what it seems to me. I mean only Urahara and Isshin had talked about the 'masked warriors'.

And also the way the Vaizards were tearing apart the Gillians is quite impressive too. It was just not the fact that they were dispatching them but more the ease of with which they were dispatching them I think. Either way I thought it was a good chapter. Cant wait to see what happens next.