It takes time to get into the platforms your describe. We can either a) make you wait months to see the episodes on those platforms, or B) offer them instantly with a simple membership wall while we work on wider distribution through TV and streaming platforms. Fact is, the shows will not be accepted into broadcast or other streaming platforms if they're already freely available online. We're playing the long game.
Also, to compare to Drive. That series is fully funded by Google specifically for YouTube. There is no other way that an online ad-based show like that is economically viable and, if/when Google decides it doesn't want to front the money anymore, it will go away (as many other shows have from YouTube.)