First off... I believe the mumbo jumbo in that post is all smoke n mirrors to begin with.
Although I won't make fancy flow charts or formulas to back my knowledge. It's a cumulative thing from talking, reading and more. If the OP of that post wants to legitimize his thesis, then he should hook up the S/C to flow tests and the vehicles to dyno's to show ACTUAL numbers.
That said, it's well known the GenV upgrade is not that much really and the cost/gain crossover makes it a mod that you'd most likely do as you're running out of mods that squeeze the very last smidgin of HP out of the engine or the smallest pulley size possible. I'd rather just put an Intercooler in than swap the S/C as the cost/gain is much higher. Just my opinion.
All that post is a rehash of something already known, trying to make it his own.