The simple answer is scale. The recipes in satisfactory and factorio are pretty similar in complexity, but the production chains in factorio are quite a bit larger. Also a lot of complexity comes in with scaling production up in factorio, since you largely have to scale horizontally, but in satisfactory, most of the scaling is vertical. Later, you can do more horizontal scaling, but even into the mid-game, you're pretty constrained by the amount of resource locations you have access to.