Flying Hi, unless you have the r/t transcript to prove otherwise, I would put all my money on the fact that all parties, and especially the Enter Air, were kept in the loop at all times. Enter Air was most probably told to expect a late landing clearance. I've personally seen what you describe many times (once from the F/D landing on 15 at BHX) both in the UK and the USA where single runways are involved. It looks tight but it's well managed.