I think it all goes back to the fact that if we'd still have stars for rating videos on YouTube instead of algorithm-driven suggestions and no real way to decide whether people really liked the content or not, we wouldn't be here. That would not be necessary if I could still clearly see who's got good ratings and who doesn't
Without algorithm driven decisions I would not haven 90 percent of my very high quality feed.
Stars are usually worthless. People leave 1 star or 5 stars, that’s akin to a down or up vote. And with the algorithm you never look at the ratings, really; you just trust the feed, because it’s good!
YouTube’s algorithm is extremely good when you know how to give it a helping hand, especially for educational content. I’m quite happy they’re pushing for more educational tools and ways for educational creators to make money.