It may not be everyone's cup of tea (no game is) but that doesn't make it any less valid. If you look up "journaling games" on any search engine you will find out that creative writing exercises can go beyond that and also be games. Just like improvisational theater can go beyond that and also be a game. People (both designers and players) are constantly evolving and creating new things, expanding the concept of what a TTRPG is.