Notice I said "has a larger attack surface". We're talking about the method that is used to walk things across the air gap. There is no perfect method. Not eve

Notice I said "has a larger attack surface". We're talking about the method that is used to walk things across the air gap. There is no perfect method. Not even if you were to use printed paper and manually transcribe (the human doing the work can be compromised). The goal is to reduce your attack surface as much as possible. In that regard, physical media has advantages over any network.