Everything seems drastically simpler after you've already learned it vs when you're trying to learn everything about it for the first time. Hell, even explaining what the difference between a class and a struct is in C++ ends up going into weeds about public/private that makes many people who just learned what variables were a few weeks ago, let alone trying to teach them what different attributes of classes do by comparing best practices of their usages.

I.e. they aren't trying to say what is elegant yet, they are just trying to get people to understand what the building blocks of classes they can compare are even supposed to do so they can get to comparing when you'd do different ones.

But there are bad teachers and they tend to be bad regardless of the example chosen.