I thought the article meant that Birmingham were going to stop doing 'unconditionals if firm' rather than unconditionals altogether.
Though I am not sure how that would work for Birmingham - if the result is that the high prediction students make them their insurance, those students will only go to Birmingham if they don't get the predicted grades, or good enough grades to go somewhere else through adjustment. Which may mean the next step is to stop doing ucs altogether - otherwise Birmingham may only get the students who 'bomb' - as those who only just miss the predicted grades will go through adjustment.
No particular axe to grind but I thought unconditionals had a place, and have never been convinced that they led to students not working (suspect it is more the other way round - students who realise they won't get their predicted grades are more likely to accept an unconditional). In any case, I thought Birmingham uif holders tended to perform well at A level?