Little verified background is available for this short upload, and its original recording context is not clearly documented in the information supplied with the clip. Online, short name-based callout sounds like this one tend to circulate because they are easy to reuse: a listener recognises the personal address immediately, even without knowing the original moment. The Ian Moore but you phrasing works in that same way, as a reusable reaction that creators can drop into edits, duets and comment-style videos whenever they want to turn attention directly toward one person.