Part of the reason for the systemic phraseology is the media age we live in - all mention of death is to be suppressed to maintain the illusion that modern war is advanced and bloodless.
It is entirely consistent with brainless MoD policy to invent an new language to describe warfare. The next big thing will be a series of expensive glossy pamphlets entitled "EBO for Dummies" paid for out of the public purse, money that could have been spent on things that go bang or that benefit the man or woman in uniform. There will still be puzzled looks in crewrooms across the world wherever the map is Imperial pink.