The author is listed as "Brought to you by Hertz" which is probably a legitimate alternative to putting "Sponsored" in the title. Never mind that the text is much smaller.

As for turning the comments off, I've been approached before about true sponsored posts, where I wouldn't get to write any of the content. It would just be handed to me and I'd publish it as-is. In those cases, it was made clear that the comments would need to be turned off. (FWIW, I didn't accept these offers.)