I could chime in here, as I have in the past, and talk about mechanical to electrical transduction, blah blah blah, but I really can’t bothered again. No one really moves from their entrenched positions. The only thing I will say is that manufacturers and retailers are in the business of making money, so we should certainly regard what they have to say with a modicum of scepticism and trust to our experience. FWIW the video in the OP would certainly persuade me to buy a Seymour Duncan pickup for a cheaper instrument that I was comfortable with (I have in fact done this, just not with an SD).