Tom, you got it "spot on". Just because a person holds a little longer dosen't mean he/she are not shooting in the instinctive style.
Time on anchor is not a factor that is a constant requirement when it comes to instinctive shooting, no matter if it is a short time, or a longer time. Where is it written that you have to shoot just as soon as you hit anchor to shoot instinctively.
There are many reasons a person might decide to hold longer before loosing the arrow. I have had to wait for game to clear brush, should I have waited, and drawn when they cleared, I would have been detected while drawing.
Let's not get caught up on instinctive shooting as being something that you do with your eyes only. It is a matter of looking at what you want hit, pointing the bow hand, based on what the "hair covered computer" has determined by previous programing. Naturally the other aspects of the shot come into play, push, pull, back tension etc...
While we can agree that it is not using the bow, the arrow, the rest, or any other part of the bow. You have all heard the description of pointing one's finger at something, if a lazer was attached you'd hit that object nearly everytime. Instinctive shooting is just that, now when holding longer in the process, it requires concentration for a longer period of time, which is always a challenge in instinctive shooting, but not impossible.
Why have I extended my holding time you might ask, simple, It allows for me secure a better anchor, get that circle of energy, and my back muscles together. I have learned that since I have done this, I am actually able to shoot faster than before, with better accuracy.
If you can do it the right way slowly, it stands to reason that you will be able to do it correctly when rushed. It is the basic principal of sports training.
I am an Defensive Tactics Instructor for a large Police Department/Martial Arts Insturctor. You alway take your students through slow repeated steps, then you can slowly increase the speed once the techniques become a part of the subject. The speed by which you execute a defensive tactic is totally dependent on the situation, as it is in hunting.
I will not suggest that everyone would want to follow this line of practice, but it has stood the test of time in many of the shooting sports, and athlectics. Isn't the shooting of the bow, both an athlectic activity, as well as a Martial Art?
Let's not assume that just because a person is holding a little longer that they can't be shooting instinctively, it is a mistake. It also gives many people the wrong idea, forcing them to think that they must shoot as soon as they reach anchor if they are going to shoot instinctive. It breeds "half draws", "snap shooting", and God forbid, "Target Panic".
Let's be honest, one of the most common reasons that a lot of people let her rip when they hit anchor is due to too much draw weight. I was guilty of that until recently.
Now for the disclaimer:
The opinions expressed here are solely those of the author, and not those of the "Traditional Gang".
Have a great day!