I think I disagree. In such a huge map, more story beats and lore information are one of the best possible rewards for exploration. If only the mandatory path had story-relevant stuff, it wouldn't be as fun as it is to just go out and do your thing. Why would I make sure to listen to the radio every time I walk into a diner if nothing of value will be there, and every story-relevant thing will appear in the main quest?
I don't mind the fetch quest nature of the sides because the gameplay is a lot of fun to me, and what it lacks in small stories for each quests in the vein of The Witcher, it makes up for with world building that adds to the main story.
The Ignis cooking minigame was something straight out of Brotherhood, and what made me want to camp at every possible location. Why would I do that if these scenes had no chance of appearing?
By the way, tried to fight the Bandersnatch, gave up very quickly, wasn't doing much damage at all, haha.
Now I gotta work, unfortunately there's some stuff I have to do and couldn't take the whole day off, but I'm excited to continue exploring after I get back home. Next stop is Hammerhead again, do some more things before heading to Galdin Quay.
7 hours so far.