If they need to charge more, then they should charge more. YT Red is arguably too cheap.
Don't get me wrong i think they should get money for hosting but they want much more than that. That is the reason why they don't have any hosting premium plans (like vimeo does). If they did Im sure Blender foundation would pay for hosting of their videos.
Also lets not forget the overall highly positive impact these Blender videos have for the platform. They bring in people from embedded videos and people continue watching more videos (most likely monetized ones). When youtube hosts videos from blender or MIT they also can claim (as they love to do) how big educational impact they have...
Which is frankly ridiculous anyway, if they want to change the rules for unmonetised videos, they should actually change the rules, have a setting on the button that says "if the video becomes popular enough, YouTube reserves the right to run our own advertising against the video" and just run ads.