Okay, so D&D has this whole set of spells that make you a chump if you memorize them. Spells like See Invisibility, Detect Thoughts, Locate Object, Tongues, or even Arcane Eye. Sure, additional information is nice, and given some notice a good divination spell will completely -or even problematically- solve a problem or plot point. That's great, but it isn't damage. Damage is always helpful. It's a pretty rare game where you'd rather have Tongues than Fireball. Unless the DM shoehorns in a situation that specifically requires that spell. And unlike spells like Major Illusion, there is very little room for the creative application of most divination spells. Even a lot of the theoretically interesting ones like Augury are still pretty useless due to ambiguity.