Because there already was one in 1992/1993: Yoshi's Cookie.
No story, and just Mario, Yoshi, Peach, and Bowser. (There was also a Puzzle mode on the SNES designed by Alexey Pajitnov, and an Action mode that won't make it into this.)
The game is no longer compatible with the itch client app.
The app requires a single downloadable archive file for the game. Splitting the archive into two parts (.ZIP and .Z01) breaks the itch client. (Though maybe there is a way to get itch.io to consider the two files to be one release.)
It could just be that you didn't mark the Windows package for Linux in itch settings. I'm using the desktop client, because I've always found it easier to manage game libraries that way.