The fact that they're managing to keep a low profile despite being that obvious isn't reassuring.

[While Shun wants a face to put to their enemies, at this point he suspects that whenever they're revealed, it's going to be on their terms. After their lack of concern about what damage their attacks do and to who, Shun's not particularly inclined to give them the benefit of the doubt in any case.]

Given how few of the old gods have even tried to respond to the attacks, they might not have a choice here. People suddenly get a lot more trusting when it's their lives on the line.