Okay, if it's going to be used this way, then I'm against it.
It totally negates someone using a resource if will always come back with "Reply hazy, ask again later". That's not fair to the players. Better not to have the spell at all so they don't spend the slot.
And when you're casting a 5th level spell to directly talk to your deity or their divine proxy, and they leave you hanging because some other caster talked to some other god they oppose - that makes no in game sense either.
When intentionally used like this it feels like saying to the players: "if you spend a resource, you're going to get screwed, but you enemies can spend a resource and find out all about you because they have more casters. Oh, and it makes in narrative sense, it's just a mechanics element to screw you".