Well Burp, appropriate handle!
Correct, and the rules permit any controller to increase separation when they deem it fit. For example, following an aircraft type such as the 75 that is known to produce more vortex than expected from its weight and which has caused many vortex incidents. Safety before movements doesn't seem unreasonable to me.
Superfluous? Well, wake vortex is unpredictable. With your time in the job you will have had traffic behind a heavy get into a vortex problem at some stage, even when he's comforably over the prescribed minimum. It seems to me that to give the guy a warning that he is following one would be a most professional thing to do; and that is what we are about here isn't it?... professional ATC?
Here's a piece of superfluous info. for you: A tree is in one of two states; it is either growing or it is dead. Now if all human beings were open to growth the world would progress. That would be nice, wouldn't it?
Night night
