Knowing how to search prompt Google became a skill among programmers, so has prompt/context engineering
You can hammer in nails with your knuckles. Do you want to do that daily? There are people who can, they're still worse at it than a plain hammer or someone even using a right rock. Much less an assembly line.
I have very rarely needed the site: modifier, and even knowing this exists sets people apart, and reinforces there is skill to it