The issue with standard closing angle where the track passes close to controlled airspace is that it may lead to an infringement; double track error is potentially much quicker at getting back on track (unless you do what one student proposed to me, do a 90 deg turn towards the track!!)
However, standard closing angle minimises time loss and extra fuel burn, though on the small errors we ought to be correcting for, it probably doesn't make much difference.
TOO