Moreover, Cultivation Path Ancestor was not sure that Hao Tian would succeed in becoming a Saint this time.
Before, he vowed he would seclude himself for a hundred days at Purple Haze Palace, and though intervening was not out of question, the most he could do was to help Hao Tian preserve his life.
As for the matter of becoming a Saint, it is required that Hao Tian fights his way through the siege of Quasi-Saints to be successful.
If Cultivation Path Ancestor helped him break through the siege of Quasi-Saints, it would be of no use to Hao Tian.
An adult helping a child in a fight can at most eliminate danger for the child, but can never directly make the child stronger.
Matters of becoming a Saint, in the end, rely mostly on oneself.
Therefore, Hao Tian never asked Cultivation Path Ancestor to intervene, as he understands this principle.