:::I disagree with your premise. "We" do not "handle MT within Translation," rather we mention machine translation in the (more general) article on translation. There is a separate article on Machine Translation (that "handles" itself) and one on the History of Machine Translation. Both are rich and interesting subjects and I do not mean to take away from either one. And yes, boundary lines are not a law of nature, but this wikipedia article starts from the premise that there is something called translation and that we can talk about it. I don't see why it would need to be split, and further I don't know what you mean by "Translation within the Systems Approach". It just sounds like empty words to me.