It's because no distinction is made between gameplay and narrative genres. If we were only counting gameplay genres (as a site that's focused on video games should) there'd only be 2 genres and 2 influences: submarine simulation, narrative exploration, photography and surveillance.
Ideally all narrative genres would be in a descriptors section like what exists on RYM.
Ideally all narrative genres would be in a descriptors section like what exists on RYM.
Its also better to flesh out other parts of the site