It's still something that should've been talked about earlier, anyway. It taking deaths before someone realised it was enough of a problem to need announcing is another stain on an already bad record, and people are probably going to be more pissed off it was left this long than grateful for the warning.

[Shun might've met the old gods now and even have some kind of decent attitude towards most of them, but he's still fully willing to call them out on incompetence like this. It's no use to anyone trying to gloss over it.]

You're right about whoever's responsible, at least. It's far too early to discount the idea that someone's using the Sorcerer's sign as a cover for their own movements.