It’s just one of many genres/subgenres that has one groundbreaking game/saga as origin and all the games that took inspiration from it, like Metroidvania or Soulslike. Just creating a new term for each of them would make initial discussions much weirder, although it would probably be clearer later on (nowadays most people that know what a Roguelike is don’t even know “Rogue” is an actual game)
orphiebaby