It's a switch of focus. Instead of being occupied by the grunge work of integrating libraries and code logic from the outset, now focus can remain on the larger

It's a switch of focus. Instead of being occupied by the grunge work of integrating libraries and code logic from the outset, now focus can remain on the larger picture for longer, with a need to jump into raw code only for the really tricky/unique problems, if there are any. That can be a lot of overheat avoided, if done well.