AI routing - lazy/unprioritized implementation?

This was discussed by a guru years ago. Don’t remember which one, but they said the clipping was a side-effect if the “improved routing” of the game. What they meant was that Sims won’t get stuck, because they don’t register collisions in their path and will route through anything to get to the destination. It’s laziness for sure, but a lot of their laziness was sold to players as some sort of improvement.