Think Rick will ground Coral? lol.
I understand that Coral was just trying to protect them but he just lost all of Alexandria's guns. Even if Rick doesn't punish what he can do inside of the house, at least publicly say that he's grounded because I'm sure a lot of people are pissed right now. Hell, Olivia almost died because of it. Even if his heart was in the right place there is no way that Alexandria could have taken on all of those Saviors and he should have known that.
Negan was only ever going to take half of the guns before that. We know this because The Kingdom has guns and even pointed them at The Saviors in The Well and they never cared. We know Hilltop also has guns, they just don't have any ammo left. Now because of Coral these people have no good weapons for hunting or scavenging. If they get surrounded how are they supposed to fight off walkers with a knife or axe?