Because when you’re going to the place you see some weird looking tree and stop to inspect it. And then you see something strange in the distance and you start going towards that. And then you see a shrine so you detour over to collect that. And before you know it you’re halfway across the map from wherever you were originally planning to go.

In the six years since that game was released I have never found a game that successfully replicated this “keep getting distracted by things you see in the distance” gameplay loop. Closest was Elden Ring.