The whole defense industry leaves a bad taste in my mouth. Once you peel the narrative that we are supposed to be the good guys (hint: in some/most cases, we are not), you realize that you really just help to kill people.
In general, I 100% agree with you, and I totally see how the technology displayed here can, is, and will be applied to more offensive purposes. But in this one specific case, this thing is a missile defense tool. Its sole purpose is to reduce killing.