I appreciate advertising money pays the salaries of people in such companies, but there are other less intrusive ways. Since I've grown up with the evolution of internet advertising, my brain is wired to just ignore it. I can't saying I've knowingly be influence by any form of internet advertising, ever.

A better solution for all concerned would just be to watermark a corner of a video with 'sponsored by company X' than the hours of human effort wasted in squeezing 30 seconds of adverts into everything, and the effort of people to block and get around that.