I once approached a red light and the satnav commanded me to "go straight". I almost did so, because a robot voice told me to do it. Would it have been the map's fault because it didn't know the traffic light was red? No, it would've been me, because I didn't pay **enough ** attention for a moment, following a command blindly. Drivers have to be aware of their surroundings all the time.

Here in this case there should have been a road block and hazard signs in front of it.

This all reminds me of the case where some people sued a weather app because it didn't warn them of bad weather and they completely relied on a single source of information.