Exactly, it's a natural way to write a college essay. I've never not cringed reading an article/blog post that is structured that way, it comes across very contrived. I've also noticed that LLMs tend to prefer it, and humans tend to avoid it in general.

For a 500 word blog post, sure it may be a bit much. This article was a decently hefty read, for which the summary callouts are not out of place.

It's called an executive summary in that case, ain't it?

I was thinking an academic Abstract, but sure.