South Wales rail electrification

Philip Hammond, Secretary of State for Transport, has just announced in the House of Commons (hooray! there have been whispers about the decision, but no premature press releases by-passing Parliament) that the Great Western main line will be electrified into South Wales - but only as far as Cardiff. While we should be grateful for the first electrification in Wales, it does appear short-sighted not to bring the region of Tata Steel and the upcoming extension of Swansea University within its ambit.