Explain-to-the-folks-at-home-ism

Explain-to-the-folks-at-home-ism (or Prerequisiteflation) is when an intellectual content creator, especially a music theorist, caters to the beginners instead of the target audience by breaking down rudimentary elements of the concept that their audience already knows. They might say something like this:
“That F is exactly why Jacob Collier is the master of notes. Oh...what's a note? Glad you asked. See, a note is...” "...but where do notes actually come from?? Couldn't be a better time to answer that. In Western music - wait...I almost forgot haha! What IS Western Music?!"
In the words of Chris Hansen, "You see how this looks".
This problem could easily be solved if there were seperate videos made for audiences based on their skill/knowledge level, but this phenomenon explains the sheer idiocy of music theory content creators. The motivations for wasting the audience's time are unclear, all that is clear is that it's annoying as f*ck.