This is a beautifully written article and the order of revelation is spot on. Of course, I cannot be sure but it looks like something that AI would write (and, since I've not worked with RedShift, I cannot confirm nor deny it's accuracy). If that's true, then this shows that that author knew how to use the tool quite well. If the author didn't use an AI assist, then he did one helluva nice job.
I do understand that the article is an "overview" but it would be helpful if some supporting links were provided. Even just a top level link to the AWS documentation would have sealed this article up. Other than that, really nice job, Rahul.