The will of the fragment of legacy was enjoying the sight of the Grand Patriarch being unable to hit Shiba and instead of being constantly hit by Shiba's traps.
Although it was obvious that the Grand Patriarch was stronger in terms of raw power, given how the battle was developing, Shiba looked like an experienced master toying with a fool that offended him.
The will of the fragment of legacy liked Shiba more and more after each second that the Grand Patriarch was humiliated like that.
Of course, Shiba was only acting like that because he didn't dare to be reckless, but he couldn't say that he was displeased at how foolish the Grand Patriarch looked.
Still, the Grand Patriarch was only humiliated. The injuries he got were healed almost instantly.