If someone is training to fire no matter what every time they draw the gun, that's a huge problem. But, getting on the trigger as soon as the muzzle is pointed at the target can be a valid technique for a faster shot, assuming that shot must be taken. It seems to me that we need to train for scenarios ranging from
- Fire a shot as fast as humanly possible. See John Correa's numbers, listed in this article.
- Draw to a ready position, finger off trigger.