the games are as intense as this song.... Most people tolerate intense music better than intense games, that's probably why. Try the games if you want to challenge yourself as much as this song sounds, otherwise, no shame, but there's your reason.
@@macchiato_1881 Actually I think it was like 81% IIRC. Based on the annual touhou survey where they rank favourite characters and games, and soundtracks, etc. lots and lots and lots of answers regarding the music, and the majority of them say 'I haven't played the games'.