This is mostly because of the itch.io suggestion and search algorithms, not to mention advertising your game takes a lot of energy out of the developer. That's why game publishers still existing today.
If someone is interested, I've made a list of suchs RPGM games, that literally "barely played by anyone": https://itch.io/c/5891815/rpgm-games-barely-played-by-anyone
Sorry for necroposting.