Does archive.org have the storage space or bandwidth to serve this much video?
I agree that archive.org is the "correct" place for this content, but I think YouTube is a more practical location for now (and also the place where I think the content is more likely to be discovered by regular people: many people think of searching YouTube when looking for video content of all types, and YouTube has a top-tier indexing and search engine to help them find the right stuff).