Like here's a thing. A Functor is a fancy name for what is basically an interface the has one function signature named fmap. The fmap function is used to map one or more things in a container to different things in the same kind of container.

I think someone was probably just showing off by naming this a Functor, but even if they are just plain smarter than the rest of us, that's all that a Functor amounts to. So don't be afraid of it.

That's the way that functional programming needs to be taught.