No, not at all.
Listen to what we're saying.
With all variables the same, other than the amount of boost pushed through the system, what is that doing? Changing the amount of boost, is directy related the the amont of horsepower that you're making, yes the cams are part of it too, it all works together. In a forced induction engine, the supercharger has much more to do with the power curve than the cams do, when the supercharger is making good boost. It's no small coincidence that the power curve follows the boost curve of our cars so accurately. I'm not implying that the cams are useless, by any means. If you lower the ENTIRE boost range down, and increase the peak boost, what do you think is going to happen? You're going to gain power, both sooner and in total, that's the whole reason people change pulleys, and BOV's, and turbo wastegates, and boost controllers, and all that jazz, is to get boost faster and higher than stock. The amount of air entering your engine is what determines how much power your car makes, the cams open and close the valves at the right time, and the supercharger stuffs air through them. It's a relationship. We're ONLY talking about supercharger boost levels here.
The mod that people were talking about is to stop the supercharger from reducing boost near redline, which would increase peak boost and horsepower without changing the speed of the supercharger. ONLY because the supercharger is spinning fast enough the make more boost to begin with, and the computer for the car is bleeding it off 'for no good reason'. I don't know anything about how it work in a GP, like I said, but it's not the same thing that you're talking about.