This doesn’t apply to all program languages? The need of knowing why they do it in a way, and not how they do it? I’ve seen to much copy cats and programmers who do a trick over and over but have no idea what they are doing. This can lead to very odd situations where somebody with knowledge can’t understand what is happening.
And sure, it is my personal opinion. But it is an opinion based on years of experience working in big and small teams for big and small businesses. My opinion is that you can explain every rule of code you write, otherwise you shouldn’t write them at all…