Does an audience of independent, critical-thinking people who self-educate on the topics they hold strong opinions on exist? Sure, absolutely. However, I must ask, how much time have you spent "in the trenches" talking to the hoi polloi? For me, it's been the better part of a decade talking to people with very little filter with regards to who they are about audio science, trying to counter the spread of misinformation and improve the community's understanding. There hasn't been a week where I haven't tried to explain how someone is going wrong on Reddit, Youtube, or one of the countless forums on this topic, and in that time, the pool of people I've found who are not coming at audio science from a perspective of profound misinformation is tiny. Not non-existent, but tiny.
ASR has a lot of them, including folks whom I very much look up to like JJ, Floyd, and Sean - so too do a few small audio science minded communities on platforms like Discord. In those places, I generally don't employ this style of rhetoric because people are more skeptical of "look at that misinformed strawman over there", and I try to address people more as peers - the results are mixed, if I'm being honest, relative to the propagandizing style, but I don't think that would be improved by changing to be more propagandistic, so I'm sticking with the more peer-like approach here.
But for the masses? 90% being profoundly misinformed would be a very heavy understatement of my own experiences trying to directly inform people on these topics over years of my life. And among the profoundly misinformed, unless you wish to devote many hours of your life to a dialectical analysis of where their misconceptions come from, you will typically encounter outright rejection if you say "You, sir, are wrong, let me explain why". The goal of videos like this is not to address people who have read any of the primary literature on this topic, and certainly not to address people who are in the industry, it's to address people who see it pop up on YouTube recommended and, hopefully, we pray, will walk away Somewhat Less Wrong than they came in.
If you have such faith in your fellow man, you are of course quite welcome to make content on the basis of this Rousseauian view - in many long years of trying to educate the public, I have found very little to make me believe in such a view, at least for mass media. Yes, this is extremely cynical, and I fully and openly accept that label. If a cynical approach can help dispel misinformation like "the Harman research just tested public preference, it doesn't have anything to do with high fidelity", "frequency response isn't related to what we hear, because it's just sine waves and music is different", or any other of the host of misconceptions that we see every day, I'll happily count that as a win, and my interest in the normative judgements of those not in the arena is not very high.