Can confirm. Google maps was more than happy to send me down this "road" in Baja. http://ushuaiaorbust.com/wp-content/uploads/2018/01/IMG_7956...
I know these sorts of scenarios aren't a priority for them, but I'm surprised they don't even have a roughly accurate estimate given how much location tracking info they collect. If 40 people this year have driven a stretch of road with a range of travel times from 25-40 minutes, an estimate of 7 minutes seems pretty obviously wrong and easy to catch.
This results in 5-10 semis getting stuck every year. There is nothing that google is willing to do to help the state out. The state has put up signage telling drivers their GPS is wrong, and they ignore it.
This highlights that routing algorithms do not understand the concept of safe driving and cannot evaluate how dangerous it is to just pick any alternative route.