Actually I've read this chapter in the day of release on sensescans site, today, after checking for updates, I had a feeling of curiosity how other people reacted to that chapter. And I can clearly see than I'm not the only one(we are majority) who are not very pleased by this chapter filling.
I love this manga and I've spend a few years already on waiting for every released chapter, but I was really sad after reading this chapter.
Okay, killing ten men with one swing is could be a way to show characters strengh. But putting in the middle of a crutial fight this cultivation sht? Cultivation? In that more than less historical manga? Really?