User blog comment:Aeron Solo/The Dark Moon Stroke/@comment-4126675-20121026003647

How does he not need Quincy powers, plot-wise? Juhabach just literally blasted the strongest shinigami in existence into ashes.

Someone needs to save the day, and it doesn't make sense for Ichigo to sit on the sidelines either. A fairly logical step would be to make the main character stronger. This was the easiest way to accomplish that.

The entire theme of Bleach for Ichigo is "unlocking his true power". This is just a step further in that direction. First with Shikai, then with Bankai, then with masks of all sorts, and then with that demonic form he took to defeat Aizen, and then with Fullbring, and now with Quincy powers.