No, I didn't say a powerful bench isn't going to get you bigger. I said training for a bigger bench won't necessarily make your chest grow faster than a more well rounded chest routine focused on hypertrophy.
If you compare a powerlifter's chest and a bodybuilders chest of the same level, the bodybuilder will have a better looking and larger chest. It's just common sense. Why? Because one is specializing in obtaining size and shape while the other is concentrating on increasing a weight moved. You'll get some size increase of course because the body has to adapt, but you're not going to obtain it at the same rate as somebody whose focus is chest hypertrophy.
That's why bodybuilders bench press one way (elbows flared, smaller arch, etc.) and powerlifters another way (elbows tucked, wide grip, huge back arch, stable tucked legs). You like to read between the lines way too much when it's pretty obvious that if you specialize in obtaining mass, you'll get more mass than if you specialize in reaching a heavier powerlifting
PR. It's like comparing stan efferding to branch warren, the results are clear.