It increases signal to noise ratio in comparison to raw google results.

You might or might not miss that hobbyist web page. I can't say for certain, but I do know that most of my self learning explicitly includes going over the history of the topic.

Or you know, same scenario, but you are looking for information on how quanta work. You really can't make sense of the first 10 pages of google results, but you happen on "Motion Mountain" on the 11th page and you end up spending the next two years telling people the universe is made of little knots.

If that sounds like a pretty specific example, it's because it's a real one of someone I knew. I don't think the tool here is going to massively impact the quality. The person's judgement will play a way heavier role in that.