I think he/she is referring to the fact that the site scrolls for you (i.e. scroll hijacking), not the action of scrolling (by users). When a site scrolls for

I think he/she is referring to the fact that the site scrolls for you (i.e. scroll hijacking), not the action of scrolling (by users). When a site scrolls for you, it can cause you to lose context (as what you just did is no longer on the page). I feel like a more apt term might be slideshow design?