Absolutely. As a retro console homebrew dev, I was very disappointed in the article when I realized it wasn’t for the PS1/PSX. Needs a 5 in the title.
All the more reason to specify. If you're going to disappoint someone no matter what, why not include a single extra digit in your title; to avoid the issue altogether. :)
It's not even for the PS5 (or 4 as the case may be), someone interested in PS4/PS5 development or homebrew would also be disappointed.