One example I have is there is an intersection on my way home that Tesla maps (and Google maps) wants me to turn left at. The problem is that its a left turn without a signal, across 4 lanes of traffic with limited visibility. This is a recipe for crashes, and I've seen multiple crashes here. However, if you go 1/4mi out of your way then you go under a bridge and wind up at an on-ramp to the same road .. no left turn needed.
It took me a while to discover this route when I moved here. It would be nice if there was a "safer route detected, +1 minute" option presented to me.