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.
What about this do you consider a scam?
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.
I also didn't think about how an older can might not look as good on camera as a brand new can.
Some fancy people are on the Ballistol team, I'll have you know!
If anything, they should be derided for using free labor in the form of a contest to produce marketing content.