[ithkuil]

many people believe that over engineering is bad. It doesn't mean that it's OK to have crappy software, but that you should focus on things that matter. In other words, it's OK to do X until it's not.

On the other hand that's not an excuse for not understanding how things work and just having faith in some magic layer that somehow would just handle things for you. Doing so it could make it impossible to improve those parts of the system that are important without rewriting everything.