Even if we take a step back and assume the array that revitalizes the old with the new becomes accessible to all major immortal sects, it would amount to nothing more than a slight increase in combat power comparable to that of Taoist Monarchs.
The current state of affairs in the world is rapidly changing, with newly ascended Dao Lords aggressively pushing forward, forcing even established Dao Lords to leave the Diaoyu Island and personally enter the fray.
This means that the current conflict is no longer confined to the level of True Immortals; Dao Lords are being dragged into the waters, and clashes between them are no longer rare occurrences.
In such a scenario, even if these large immortal sects possess such arrays, apart from providing some assurance for themselves, they fundamentally cannot influence the situation between heaven and earth.