Uh, you might actually want to watch some of these videos. You're right it's not everyone, some people are doing the whole 'this is why it works'. But there are a lot of people who are very mistaken about how a lot of other people make music.
Yeah, I still watch them to try to pick up more theory on “why” something sounds good or has a particular feel, but a lot of this stuff came because the people making it knew what they liked and picked something interesting.
Overall, I used to like Metallica as a kid but I hated what they did with the whole Napster thing enough that it inspired many years of amazing torrent community interaction that has brought me so much musical joy and good times. I also despise some of their decisions around mixing / overall sound of albums like Death Magnetic given that their own personal amazing rehearsal spaces are fully kitted out with Meyer Sound systems, which are fantastic and arguably the best in the world, yet their music sounds like that. Perhaps all those years playing have wrecked their ability to hear anything over 6khz.
My brother was in a punk band... and I was in a metal band...
The punk guys couldn't care less about music theory or whatever, they cared about having fun with the music and playing skills were almost irrelevant, almost frowned upon (you don't hear a lot of guitar solos in punk - it's mostly 3-note, fast paced music with rebelious lyrics... I feel so old describing it like that :D ). For a time, "broken" timing was in vogue, both in some punk bands and in a lot in metal (not sure if Metallica was a pioneer with that? I am too "young" to remember).
The metal guys were not completely different, to be honest, except for playing skills being much more important, as it's integral part of the music to have endless solos and complex riffs... but at least in my circles it was more about raw skills (how fast you could play more than, say, how much "feeling", though that was important too) than theoretical knowledge.
I'll try and see if i can find the specific examples later, after work. They guy that doodles on music sheets/ruled notbooks while talking, doign a nin song, is the first that comes to mind.
