I had twice in a short time span a closed road that Google Maps did not know anything about.

It was useless, because it constantly routed me to the closed segment of the road. I had to manually select some far away point to finally get it to ignore the road almost completely, because I did not know how much of it was closed.

One was on a German side of a major highway connecting Germany and Poland. The other on Berlin's main highway. It was after midnight so it was a challenge, but it probably was a scheduled maintenance.

None of these are problems with proper planning. I usually add an hour for every three hours of driving as a buffer. It's worth noting that GPS doesn't solve this either. If there's an accident a few miles ahead of you that blocks the road you run into the same problem.

This comment kind of reads like the lead-in to a bad infomercial. It's not that dramatic.