Now that Li Fan understood what this so-called sword fighting was really about, he dismissed the idea of going to 'help.'
He really couldn't be of any help. As the Xuantian Sword Intent had said, the sword fighting in Mo Zhu Mountain was essentially the same kind of test as the Beichen Sect's horse tending.
You've been stuck at the threshold of cultivation for a long time, the sect knows, and the sect can help you, but why should the sect help you? You at least need to prove yourself, to show that you're worth the sect's investment, right?