Man, there are people raking in hundreds of thousands, to millions, doing exactly the same thing on youtube.
They have tens and tens of (list) channels where all the vids are generated, AI voiceover, AI script, AI images, etc. - don't think OP hacking his way through a contest is too bad.
It just got to the front page of HN, which includes a large percentage of users who buy and use WD-40 [1]. That alone might be worth the price of admission. You could also think about this as a collab between WD-40 and Javascript, which is pretty funny.
The author is presumably posting this video and blog everywhere, which only further amplifies WD-40's outreach. And they themselves now have a positive brand association with WD-40.
[1] I just used WD-40 last night. I'm actually shocked the author had to go and buy a can of it.