Your point of view assumes the best of people, which is naive. It may not force you to skip understanding, however it makes it much easier to than ever before.

People tend to take the path of least resistance, maybe not everyone, maybe not right away, but if you create opportunities to write poor code then people will take them - more than ever it becomes important to have strong CI, review and testing practices.

Edit: okay, maybe I am feeling a little pessimistic this morning :)