Your focus is on the wrong thing. The hypothetical gas bag is not the vulnerability - an enemy having direct access to your energy infrastructure is your vulner

Your focus is on the wrong thing. The hypothetical gas bag is not the vulnerability - an enemy having direct access to your energy infrastructure is your vulnerability in this scenario. And, frankly, flaming gas bag is not a serious threat. It would be neat to see, but a small undirected hydrogen fueled fire without access to any other fuel source is not scary. I'd be more concerned about the body of the deflated vessel causing a short than anything