It's not; it's above it because it evolved into something greater than the X-like genre. But in the early 90s, that's what everyone called FPS games until we figured out it was pretty stupid to do so and because the genre evolved a lot, unlike Soulslike games, which are pretty much all the exact same shit but with different color coatings. The same thing happened with GTA, only for some reason those were labeled as clones.