The reason a lot of those shows is actually pretty fucked. They want ownership to the shows because any product still sold based on the show still gives them profits. However, if they put up access to the show, views = royalties they need to pay to the creators + licensing costs. The profit for that isnt enough and they wanna funnel more views onto more popular media to concept profits on shows with the lowest costs + has the highest profit to cost ratio.

Tldr: it’s about appeasing shareholders, as it always is.