Actually I've been gambling a lot lately at one pocket and straight pool is what I practice most of the time.
You have to realize there's different ways to play this game and using a consistent "stroke speed" is a more advanced way of playing. If you choose to slow roll balls and hit spinning shots to make the cue ball "lighter," then that's your option, I'll bet no one will ever try to stop you.
As far as my own game, I enjoy playing a more aggressive style where I'm accelerating, and creating a "heavy cue ball," and treating all the shots pretty much the same. If you don't think I have good cue ball speed, well I guess you can believe whatever you choose in that regard too. It's certainly none of my business what you choose to believe in your life.
Slow rolling balls is like hitting short putts for a Pro Golfer, or "drop shots" for a Pro Tennis Player. Sure, we can do it if we need to, but it's not a deciding factor in our game. That's the way I feel about finesse shots in pool, I can do them, but I don't base my game on them by any means. 'The Game is the Teacher'
PS: if you want to see my straight pool game Accu-stats has some videos you may be interested in. One of them I beat Efren in the winners side, the other one Efren beats me in the finals (in major straight pool event). fyi
Efren Reyes VS CJ Wiley straight pool