Lol the excerpt is one line of the article that talks much more in depth about it, but it sums it up quite well if you generalise for the whole dnd. xD

And I agree a lot with the article. I would even go farther: the game teaches players about their class and to interact with the world much more proactively, but it also teaches dm a lot imo, about encounter balance, items and what you can do with your campaign.