Widger -
That sounds awfully like changing procedures instead of getting to the real root of the problem - i.e. the unit in question you allude to.
Unfortunately this seems to be happening more and more in ATC nowadays. Someone cocks up or does a bad job and instead of retraining them/addressing the real problem, procedures get changed. Papering over cracks which is an easy way out and a good CYA exercise for mamagement, but it does not really solve anything.
Aviation is dumbing down by the day, most times in a detrimental way...