This article seems a bit dramatic in it's title? People have purchased "blank" RAM for years for the aesthetic of it. I do not personally see the point, but I also don't have motherboards with unpopulated RAM slots. If a company wants to sell a kit that is 50/50, I am not sure that is actually a problem.
Yes these have been around since at least 2018 - here’s a 2018 link about Corsair’s version: https://overclock3d.net/news/memory/fake_dimms_corsair_launc...
First time hearing about this, it's pretty dramatic for me. I grew up in times when computers were off-white and we liked it.
I would love to have blanks for every unused socket/port to keep dust out.
I'm just too cheap to pay for them though...