It's probably good if some portion of the engineering culture is irrationally against AI and like refuses to adopt it sort of amish style. There's probably a ton still good work that can only be done if every aspect of a product/thing is given focused human attention to it, some that might out-compete AI aided ones.
I think you hit the nail in the head there. There's absolutely nothing we can do with AI that we can't do without it. And the level of understanding of a large codebase that a solid group of engineers has is paramount to moving fast once the product is live.