These rules have never really been applied to the internet, because it's much more difficult to restrict Canadians' access to content that is not produced by Canadians on platforms like YouTube, where the audience can choose what they watch and when

The Broadcasting Act does not apply to the internet because the internet does not broadcast. You watching any one of the billion YouTube videos does not meaningfully limit your neighbour's ability to watch their choice of that billion, so there is no justification for curating the internet the same as a system where the entire country had to watch the same four shows.