User blog comment:Aeron Solo/The Dark Moon Stroke/@comment-1268838-20121024221113

Well frankly, there has been a more or less rational explanation for how Ichigo has obtained each of his powers. (Fullbring being an exception, though it seems to be explained implicitly rather than explicitly.) It's rather clear that the shock factor was intentional on Kubo's part, seeing as Yuhabahha is just as surprised as we are. It would be silly to assume that Kubo does not intend to explain this somehow - I suppose there will be no guarantee that the explanation will be satisfactory, though.

Before this point in the arc, Ichigo really had nothing other than his Shinigami powers going for him, unless he's been getting any lasting benefits from Fullbring. (From a speculative standpoint, his Fullbring-enhanced Shinigami powers are Kubo's way of letting Ichigo fight at his Visored-level power without wearing the mask.) Yet even with all of the power-ups he has had up till now, Ichigo's abilities have never taken on any significant change or additions, with the obvious exception of Mugetsu. I personally would not mind seeing his capabilities expand more, provided that Kubo can rationalize it in the plot. After seeing how effortlessly Yamamoto got subdued, I suppose it was obvious he would get some kind of power up. Nonetheless, it is far too early to jump to any conclusions.