More comprehensive, because first you need to understand how 2D algebra works in order to get how it translates into 3D space.
Desmos does just that - I can enter some base arguments an then change them according to will, assigning them to various trigonometric functions. Even with the little knowledge I have about these problems, I can still mostly understand why an equation looks the way it does. And I can also tell why the equation looks different when I change a function or an argument.
Here, however, I haven't got the slightest clue of what's going on in the 3D space. Exchanging just one number alters the entire terrain portion in ways I could not even anticipate. I find it impossible to explain with the knowledge I currently have... Why, I can't even tell if these are vectors or maybe some other shit.
I'm not saying it's useless. Just saying this is probably the "next tier" resource, which I don't feel comfortable with just yet.