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Are you trying to say Porsche didn't know you have to have smooth laminar airflow to the MAF for accurate readings? This is NOT new information, and has been know for decades in automotive and industrial flow applications. The only reason honeycomb "air straighteners" had to be used on that site is because they totally screwed up the factory intake flow characteristics.
I'm not saying the factory intake can't be improved for high RPM power, but internal or external airflows are not always as intuitive as you might think. The only way to be sure of your results is by detailed calculation, CFD, and objective testing.
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