Just using a bit of brainpower and it's clear, if the God Defiler consumes faith as sustenance, then unless he is particularly picky, all forms of faith should be useful to him.
According to the snippets of information revealed by Wu Liugen before, his status within Buddhism must be quite high, and many monks worship him as a deity.
This means that Wu Liugen, just like those Crosses, is steeped in the Power of Faith!
It may even be that because Wu Liugen is the object of worship, the Power of Faith within him is more precious to those cicadas than that residing in the Crosses!
The same logic applies to Wen Wen as well.
Wen Wen had also been worshipped by those Ore Ghosts; although the amount of faith couldn't compare with Wu Liugen's, he was also a recipient of worship.
Besides, who knows if the Sanctuary has received worship, and whether those powers of faith are on Wen Wen.
Therefore, this pursuit by the Blue Cicada Holy Envoy was squarely aimed at Wen Wen himself!
