Earlier quoted context omitted.
counterargument -- these people are making money off of transcribing other people's parts, with no profits shared with the composers.
That's a bad counterargument. Transcribing is transformative. Copying a video into a PDF is not.
https://www.thatgreatcomposer.com/blog/is-it-legal-to-transc...
https://law.stackexchange.com/questions/96352/dual-question-...
https://www.drumforum.org/threads/what-is-the-legal-basis-fo...