That is good advice. I think at the very least a person, if shooting in a place that they can do it, would at least be wise to set up multiple targets and practice transitioning between targets from different positions.
I’m incorporating multiple steel swingers now at different distances, and starting to practice shooting from cover, and transitioning to different firing points around that cover.
I’m fortunate to have a National Forest where I can go do this and not bother anyone or violate range rules. Trigger discipline, keeping your finger off the trigger when not firing and moving between positions, and safety manipulation while moving, if you have a safety, really should all be practiced.
It’s not as good as competition to push you, but it’s better IMO than just shooting at a stationary target set up to give you a perfect scenario.
I suppose this is tangential though. So the simple answer to me is do people want to have enough ammo or not? None of us know what will occur in a bad situation.