Serious question: Is there a reason to preface this post with "This transcript will not make much sense without the equations that I show in the video," rather

Serious question: Is there a reason to preface this post with "This transcript will not make much sense without the equations that I show in the video," rather than include the equations in the post directly? I ask because I cannot view the video for some reason. The embedded video errors, and so does the direct YouTube video. Which means this post cannot function as standalone content, by the author's own admission. Cynical me things this is a ploy to drive traffic to a YouTube channel. Non-cynical me hopes the equations in the video include snazzy graphics and animations a la 3b1b. Either way it left me frustrated.