Even Sally should lie down when she's not the subject of a song made famous by Eric Clapton. :-)

Lay as a present-tense intransitive verb is slang[1], just like "ain't" (another bit of slang in that song) and so it stands out in a video and presentation that otherwise conveys a sense of formality and seriousness.

[1]: https://www.merriam-webster.com/grammar/how-to-use-lay-and-l...