@Rocco_Modern:
No, no it's not actually, it's just another way of looking at an incomplete picture really. The matter of pacing only becomes an issue when compared to other series, which is fair and logical. But from the onset Bleach has had a different style with different pacing. I'm not saying Bleach has the best pacing. I don't have the grounds to say that. But is it appropriate for that type of story? Yes. Is it the best pace to have read week after week? Not always. Is it lacking because some people harp on it? Possibly.
In comparison, something like OP which is constant doesn't address those issues. But taking it into context it fits appropriately with that kind of story. An adventure story is a story that is ambitious and overflowing in strides with wonderment to bestow upon the reader, whether that be showcasing as many different races and locales as possible.
But when you take something like Nana which is about every day life in terms of celebrity appeal, fashion, music, etc., the point of the story doesn't become "let's show as much as we possibly can in every chapter to get the readers to see how similar the world is to theirs."
I feel that each series has it's own pace that suits it's story perfectly. In a perfect world, we'd get to see the entirety of a story and a creators artistic vision to see that but that's not the case. We're subjected to a certain format constantly which sometimes impairs these aspects.
There's a fine line between "Too Much" and "Too Little". Although Bleach is an action manga intended mainly to illustrate combat between two equally or inequally matched combatants, having only the combatants with minimal use of background is simply inexcusable. Sure, people want action, but they also want depth. Putting characters in a world of white space and limited backgrounds makes it seem dull and lifeless, despite the action taking place. Look at D. Gray-Man, by contrast. There's a little too much going on in the background of that series, to the point where it can be confusing. With opposite ends of the spectrum, you have to find a middle-ground. You don't have to draw a colorspread-quality background every page/panel, but at least have the decency to provide some sort of life/realism to the world. It's a bunch of Death Gods fighting other Death Gods, but it's too dead.
One Piece and Fairy Tail (yes, I went there), for example, have very vibrant backgrounds where a lot is often going on, but it in no way detracts from the events in the foreground. It's a nice balance where you can see the world, while at the same time, focus on the story. This is what Bleach needs. Kubo either has no desire to expand upon his world beyond the main story (which is silly; in anything you do, you should be passionate about it), or simply has no desire to . Unless you're in it for the money, don't half-ass it. Kubo can't pull that card here; He actually tried with Zombie Powder and drew some backgrounds and gave the world some depth, albeit it was not nearly on the level of other series.
And you can't defend the pacing of Bleach, any way you look at it. I'm sorry, but pages of swirling dust and limited dialogue are ridiculous. While not every series can have the sheer volume of dialogue of a series like Bakuman, there's a fine line between wasting the reader's time and progressing the story. Bleach does the former, far and away from almost any other series. Not to mention the fact that it's utterly and completely repetitive, and has been since they entered Soul Society. Aizen was the villain for so long that it became absurd; He didn't have to keep defeating people over and over and wasting our time. The time it took having everyone individually attacking Aizen and being defeated every single time could have easily been covered in the span of a few chapters, not 50+. It gets annoying and exhausting reading "Character Y attacks Aizen! Oh, no, Aizen used Mirror Image! Character Y's attack misses. Aizen attacks with "Super strength never explained because we've never seen him train, ever". Character Y takes 10,000,000 damage. Character Y is defeated." It's stupid, plain and simple. Just condense it to a few chapters so that we can finally have the main hero somehow defeat him (despite it being completely absurd) and move on. The less absurd is the better road, despite still being absurd.