Perhaps I'm not quite smart enough here...
But speaking as a former grunt myself... This is a tool of zero military value.
Granted, you can use it as a propaganda tool, and prevent the spread of what is happening to the world, perhaps delay international involvement. All that's very well and good.
But it doesn't disrupt any real enemy military communications. Staff pukes might e-mail powerpoint presentations around the world, but real tactical commo happens on completely seperate networks that this just isn't going to touch. Not only will real communication still happen, but with some of the TACLAN technology out there nowadays, there's a pretty good chance that powerpoint will ding in the commanders inbox as well.
But pretending this sort of stuff actually makes any sort of real tactical difference makes geeks feel good, and lets people write stories about "Cyberwarriors" or Chair Force CyberCommands.