Has the been confirmed? My understanding was that was just where the smart money was. Never mind I found the relevant post in the WIP thread as a response to a question I asked no less. Choice of Rebels Part 1 WIP thread - #2477 by Havenstone 
Either way it doesn’t feel unreasonable, to me at least and from what we know, for Abhumans to view Xaos Storms as some kind of spirits religiously at least.