Possibly. Whenever I see this paper I'm reminded of the gap of not having some 12 dollar low power red led flashlight Amazon link. I'm looking at AliExpress right now and idly considering buying a few purportedly red led flashlights and finding a way to test them to confirm they are the right wavelength and relatively low power.

Buy a thousand flashlights at 4 a piece on AliExpress, offer on Amazon at 12, write a blog post about checking this effect on my parents, link to the paper, share on hackernews and other sites with an Amazon link...

Still, I'd be kind of surprised if you could sell a thousand flashlights like this, and it seems a fair amount of risk and effort for a few thousand return.