I quoted your words. If you think leaves consume energy, we're not operating on the same fact base. There is a lot of stuff in pot growing that is common practice that is absolutely ignorant; coconut water, molasses, organic nutes for 'flavor', flushing, to name a few. Science doesn't support these, yet hundreds of growers believe fervently in them, despite immense evidence that these beliefs are BS. I believe defoliation is one of these.
No, I do not understand that "removing some growth increases your yield". I think saying that "light and nutrients go to the areas you didn't cut off" is fundamentally ignorant of the mechanisms by which plants consume nutrients. You seem to think that fertilizer is food for the plant, and that leaves consume scarce energy. This is ignorant of basic plant metabolism.
I have grown for quite a while, quite successfully. See the links below. There may be something to defoliation, indoors, for light penetration. Outdoors, this makes no sense. Light is not scarce, and nutrients can be abundantly supplied. There is no scarcity to remedy. From a thermodynamic standpoint, your rationale is not supported by what we know about how plants grow. It is mathematically impossible for less leaf area to produce more plant mass. There may be some behavior around bud shape, certainly there is less larf. But photons striking leaves is where plant energy comes from. If you think that leaves consume energy, you might want to read about how photosynthesis works.
I am going to do an experiment with a couple plants this summer to test. I have my thoughts, but I'll do the experiment. It's possible that the mass of accumulated science is wrong.