That's a good sentence. I've observed the same about the biology curriculum we went through at university. The first few semesters were just huge amounts of information we had to absorb, because it wasn't until we had an extensive foundation of the basics that we could actually start to think about and interpret and criticise new research.
And I guess it's the same with any other area of human knowledge: you have to reach a certain knowledge threshold before you can really understand the systems behind the subject.
(Fortunately there were various math puzzles and fun examples we could talk about along the way too)
You've pointed out that you have to absorb information to be able to get to a point where you can engage with a topic - but also, there's value in having beginners discuss and analyse stuff, because they're not set onto the paths that other experts have and would be more able to connect disciplines or arrive at an insight that others might not be able to think of.
Edit: is this it? https://blog.codinghorror.com/quantity-always-trumps-quality...
Following the author's own advice, I probably should not have read his article. I can think of no less "promiscuoius" reading than an article about how to read!
Took me a long time to realise what the S-word was.