Although to a large extent I agree with you when you say "[Resaerching] talents are worth more than the coding knowledge itself.", I'm not sure you're accurately representing the author's position.

Particularly his last acceptable answer is "If you have a friend who is knowledgeable on the subject... I don't care if you bother someone outside the organization with endless questions."

What the author is interested in is not having new employees disturb old employees with questions, although having new employees understand researching is a solution, it isn't his goal.