Nice observations! For now, we can only assume that this is the case for Bai TianYu.
I always thought that this novel and Jin Yong's Tian Long Ba Bu both had very similar themes -- the cycle of vengeance and enmity, and ultimate resolution only through forgiveness and tolerance.
Where in a lot of his other novels his endings are kind of a letdown and rather weak, I think Gu Long was top-notch in how he wraps this story up. Hopefully I make it through to the end sooner rather than later and can bring you all along with me for the ride. Wish me luck!