West Coast wrote: "I have no problem with, and advocate ATC callouts, such as you appear high, low,etc but I would prefer to keep the final authority for flying the aircraft within the cockpit." I don't think your examples of nipping a few feet above or below the GP are what we are talking! We're talking about the guy(s) who are going to die if nothing is done.
As a general principle I don't think any of us ATC guys would dispute that remark. However, there are times..... I have personally been involved on several occasions during my Heathrow career when air traffic controllers have intervened and undoubtedly saved hundreds of lives. If, on those occasions, the situation had been left to the guys in the front office they'd be dead. Full stop. Examples? Sure - at least two occasions when ATC sent around 747s with no gear down! Had they left things to run (or had it been dark) I dread to think of the result. The a/c were properly positioned on final approach so the instructions in our Manuals would not cover such eventualities.
YOU fly the plane but if you get into some kind of dangerous mix-up which is blindingly obvious to me then I'm going to do something about it.