What? You're telling me if you had access to someone who knew everything that has ever happened, you wouldn't throw a couple of random questions his way just because. It's not every day you meet an all-knowing being in the flesh, and if he's not going to tell you anything useful, then the least he could do is tell you entertaining useless information until the Night King and his army arrive to murder everyone.
I know if Bran had all the answers it would be way too easy for our guys to win this war, but that doesn't change the fact that there are a whole lot of perfectly reasonable questions that need to be asked when you reunite with a relative who believes he's a Three-Eyed Raven. War or no war, Jon and company really need to check their priorities.