did you need to watch the video to grasp the idea of what a rat-race is? The author thought you did, OP thought you needed "dropping out of the rat race" explained to you, meaning thta OP thought you never thought of it before.
The reader's ignorance isn't implied at all. If anything, that video is a concise, entertaining way to prime someone for the post's topic. This isn't some op-ed in the New York Times. With all due respect, maybe introspect your reaction.
you asked where I got it from, and I explained succinctly; I think my answer was adequate and is a perfectly valid criticism. That you had a different reaction does not require introspection, nor does it require me to be wrong. i hope you don't go online just looking for agreement all the time.