I originally thought the final fight was very anticlimactic, partially because I wanted to see Bai Lin grovel and bleed....but...after re-watching it I think I love it and appreciate that it was through words that the final battle ended and not with swords. It's actually quite beautiful that 1 lifetime as Chu Xuan Ji was enough to heal 1000+ years of hatred and hurt.
I do love that LHJD sneered at Heavenly Emperor's efforts to appease him. After all, he was a lover scorned..and those wounds don't heal easily. Then for him to give his heart to heal SF just made me cry my eyes out. SO beautiful!!
And while it does infuriate me that the Heavenly Emperor was basically on leave while Bai Lin was causing all sorts of mischief, he is enlightened and therefore completely impartial and wants to just let the pieces fall where they may so I can respect that.