Jon is so terrible when it comes to explaining stuff. He needs to come out and say, "Look guys, I just saw Ice Darth Maul summon up a thousand dead dudes and their GPS said they're coming for us." That shit would be the FIRST thing out of my mouth when I got back to the wall. Take this example from Hardhome.
Thenn: How did Mance die?
What Jon should have said: A southern king wanted to burn him alive as an example for refusing to subjugate his people and force them into another war. Mance was stalwart and dedicated to the principles of his people, and was willing to give his life for it. Although we fought against each other as enemies, he was a man who I also deeply respected and who had shown kindness when he could have just as easily tortured me. Before he died an agonizing death as the flames licked off his flesh, I gave him a quick death. Though I feared repercussions, I felt showing him this mercy was the honorable thing to do.
What Jon said: I put an arrow through his heart.