User blog comment:Kogath/Monster Hunter: World Discussion/@comment-6050823-20190728081447/@comment-5158920-20190731194505

Then why does New World Diablos still have horns and a club for defensive weapons if it's been uncontested for so long then other than sparing with other Diablos? In gen 1 Diablos were faster and there was nothing contesting them in the deserts apart from themselves. Simply put....there is no lore reason. There's nothing in the game about it.

It's because of how MHW was made. That's it.