A few years back there was a story where Google Maps would frequently guide people through a steep narrow street which really wasn't intended for this kind of traffic, creating a dangerous situation for both drivers and residents because this road really wasn't designed or intended for heavy thoroughfare.

Residents complained to Google. Google them to go pound sand and that there isn't anything they can do.

Quite frankly I'm having a hard time explaining the difference between "knowingly putting people in a dangerous situation" and "accidentally putting people in a dangerous situation and then refusing to fix it". I guess it's easy to enough to ignore these kind of externalities if they're not happening at your front door every day... I can forgive the routing mistake, which is an understandable one to make. What I can't forgive is the "well, not our problem". If you're going to make a GPS guidance app then you also need to take responsibility for what it tells people. Mistakes are okay. Pretending mistakes have nothing to do with you is not.

All of that said, I find it hard to really judge this situation based on the provided information; the key question is "could Google reasonably have done better?" However, in the past Google Maps has definitely demonstrated that it doesn't take these concerns very serious and it's 100% worth a serious investigation in both this specific siltation but also whether Google Maps in general takes enough reasonable precautions to prevent this kind of thing.