A pickup is an early EQ applied to the guitar signal.
With so much compression and distortion, I believe he doesn't hear much of a difference. Videos like this don't help anyone.
So I ignore this kind of messaging because anybody that has developed an ear will understand he's wrong. It's far more important to me to invest time with players that recognize pup differences and want to grow. In a way, he's helping the better players differentiate themselves from the mediocre.
The guitar player in me wants to say "Yeah - that's true.
The scientist in me says "There are very easy ways to really test this stuff. And no one ever does it. Hmmmm...."
I have said in this forum before; The Blind listening, with repeated randomized measures....that would be facts. We never see that, and I doubt we will, because the backlash would be unbelievable.
So - to be clear, we are talking about metal tone levels here...
But yeah, this makes sense.
1. Take a guitar with whatever EQ curve
2. Put the resonance through whatever pickup
3. Pickup adjusts that frequency response by cutting mids, boosting highs, or whatever
4. New EQ curve hits preamp
Then jack the gain up until EVERY frequency hits the ceiling, totally hard clipped and there is none more left to go....so yeah, maxed out frequency response is fairly flat with at best, only minor undetectable except to dog ears variation that is more a factor of the gain itself than the frequency curve...
5. Every pickup sounds the same. For playing Uber-gained out metal.
So to change the tone, you need post preamp EQ or Speakers - which change the frequency response.
Oddly enough, I find if I run a compressor in front of the distortion pedal providing the major source of gain into a super clean amp, the differences stand out much more.I am not an expert but what you write here makes perfect sense both in theory and my limited experience. If I crank/boost the shit out of my signal chain two different guitars sound very close thru the same rig for the untrained ear. Less gain and you hear more their difference, clean channel means no distortion and they sound the most different.