There can be benefits of open world. When traversal is a primary mechanic and is half the fun of the game like in a lot of Spider-man and Crackdown games. When the vaste distances with little to no civilization, just natural terrains, forrests, and the occasional temple ruin and giant beast fill you with a sense of wonder and unease to set the tone of the game narrative like in Shadows of Collosus. When the world itself is a living puzzle to be unraveled like in LoZ: Majora's Mask.

The problem is when games have big maps just by expanding terrain, filling it with tedium and unthoughtful design, make traversal a slog, and make everything feel unintentionally void of life and interesting things to do/see. And narrative driven games almost always benefit from at least some linearity.