I'm also not the biggest fan of the white-on-black style, but there is definitely precedent (at least in science-youtube-space) for explainer videos "drawn live" [1-4]

[1] https://www.youtube.com/@Aleph0

[2] https://www.youtube.com/@MinutePhysics

[3] https://www.youtube.com/@12tone

[4] https://www.youtube.com/@SimplilearnOfficial