That's fine, but I still believe you're selling short the kind of damage alternative weapons can do. Afterall, I could say the same about regular guns with regular bullets. You could miss. You could not wake up if they quietly entered through a window or something.
Ultimately, I think break-ins are fear mongering at their most refined. In most cases, you're going to get broken in when the burglars know you aren't home, most cases they will be somebody you know, and in most cases if they did hear somebody in the house, they'd run away. The chances of some psychopath entering your house when they knew you were there, and having some sort of altercation, are so low they're barely worth mentioning. The chances of being broken into at all are still ridiculously low. So, regardless of what everyone's opinions are, the chances of the situation actually happening is really low, and chances are a lot of peoples' actions would be nothing like what they'd envision, anyway.