And if you tell 2 experts to build something with W3Schools as the resource against better documentation, I'm sure the results will be the opposite.

That's not the point though, I'm not going to say different strokes for different folks.

Instead I'd say, if that beginner uses the 'slower' path instead, that will pay dividends in time -- they are better of learning to use the docs than getting paid peanuts for delivering that project which depends on the juniors faster.