Feels like this guide falls on itself right at the start.

It claims to teach to you “think in Vim” and understand its philosophy, yet the very first instructions it gives you are how to change pretty important keys (Esc and leader) and lists caveats for doing so. That’s not helpful and is introduced too soon. If you know nothing about a tool and the first thing you learn is to change the basics and that those have consequences—which you don’t yet understand—you’re starting by confusing the reader.

Those tips should be at the end, when there’s enough context to make an informed decision.