You know what? This time and this time only I'll play devil's advocate and say: I like how it looks on the page. The slideshow transitioned very quickly (I didn't stop to check if it was AJAX, but it was fast either way), and the click targets to progress were large enough that I got through it quickly and effectively.
I opened the article in a new tab to read it later. When I got around to reading it, it had apparently gone to the last slide automatically, and it made absolutely no sense to me. It doesn't look like a slideshow, so I just assumed that it was a poorly written article in which the author expected us to already know a lot of info that we couldn't have been expected to know. It makes a lot more sense coming back here to read the comments.