It was the dumbest idea to not be able to shoot. I mean what's the point. Most people don't use it as a shield. We pop it to get our blessings/weapons and then leave. I'm pretty sure that wasn't what Bungie wanted it to be. I would stay in it if I could shoot out. Especially since there are more supers that can shut it down it balances out. It's also not op because the bubble is immobile.