UDP Flooding tool (according to the name)? Well, you may call it a "stressing tool", but I'm afraid it's still what it is. I wouldn't call it a false alarm, no matter what they say.
I'd put it this way: an ordinary user usually doesn't have such a tool. If anybody wants to have it, he/she should know what it is and understand that it's considered as malware. I'm not saying it cannot be used "legally", but abusing such a thing is much more probable.