>>717788170
They literally do though.
Ocotpath Traveler 2 and Visions of Mana were co-written by established mangaka, and even as far back as Parasite Eve, the head writer was the writer of the original novel.

Writers aren't magic, they're only as good as the captain leading the ship. And if they don't know what the fuck is going on with development, they can only work with so much with what the suits wants of them to give everyone something to work with.