User blog comment:Xilinoc/Ch. 683 - The Dark Side of Two World Ends/@comment-25359524-20160721233111/@comment-5398287-20160722040526

To paraphrase this completely level-headed and fairly position commented for the rest of you:

"The fact that so many users still name Bleach as 'the greatest or most significant or most influential' shōnen manga ever only tells you how far the shōnen style still is from becoming a serious art. Seinen fans have long recognized that the greatest seinen manga of all times are Berserk and Oyasumi Punpun, which were not the most famous or most profitable or best sellers of their times, let alone of all times. Slice-of-life fans rank the highly controversial School Days over slice-of-life manga which were highly popular in magazines around Japan. Shōnen fans are still blinded by commercial success. Bleach had more great fights than anything else (not true, by the way), therefore it must have been the greatest. Seinen fans grow up reading a lot of seinen manga of the past, slice-of-life fans grow up reading a lot of slice-of-life manga of the past. Shōnen fans are often totally ignorant of the shōnen manga of the past, they barely know the best sellers. No wonder they will think that Bleach did anything worthy of being saved."

Now, to address the actual comment: it's been hinted several times by now that The Almighty has some weakness and is not as absolute as Yhwach claims it is, from the fact that Yamamoto managed to beat him 1000 years ago when it was still active to Yhwach himself almost admitting it during his recent battle with Ichigo. In all likelihood, he saw that Aizen would be fighting him, but he wasn't able to see the different, illusory forms that Aizen would take during said fight. So you can quit your whining about other people daring to have opinions contradictory to your own and maybe look at this a bit more logically.