If you have to buy the course to get access to this, I am not sure it will matter. I watch lots of youtube videos, and I pay for courses from places like udemy, but... I don't see myself as converting the things I already pay a youtube subscription (or a Nebula subscription, etc.) to watch into paid courses.

If it's cheap enough to temp companies like udemy to use it, fine, but then if would effectively be invisible to me. I don't care how udemy hosts their videos.