I don't get the downvotes, as I had trouble understanding the intro as well. It seems it was written for a very specific audience.
> I don't get the downvotes
Because the blog post is a technical one and the intro contains very common jargon, and the proposed alternative was wrong.
Yes, it is written for a specific audience.
That is not a reason for snark.
As other commenters have noted, it’s well written.