Golfers generally use nearly the same swing for each distance, just a different club length. Of course you will run into in between shots and shorter shots that require more adjustment, but they generally attempt to play to a certain distance that allows "their" normal swing with a certain club.
I figure that pool can be looked at in two ways, and I have heard different people advise one or the other. You can take the same shot performed at different distances, use the same stroke speed, and just adjust where you hit the ball, or you can hit the ball in a smaller maximum deviation from the center, and adjust your stroke speed more. I think they both have their own merit, but it is my understanding that most people more freely adjust their stroke speed. I personally think its good to be able to shoot shots with as similar of a stroke speed as possible, and I will choose a little more spin with my natural stroke speed to draw the ball further, vs keeping one half tip of draw and adjusting my stroke speed. Granted, their are times that I have to adjust both, but I try to stick with shots at my natural stroke speed, vs varying my stroke speed. This tends to work better for me, especially since my achilles heel comes when I need to stroke hard and I end up using other muscles that shouldn't come into play for my stroke.
Maybe the above has some relevance towards what they are saying.