Normally I'd agree with you but a lot of people use Google and driving for a few hours in the wrong direction in Tasmania can kill you. Fixing something like this might well be a humanitarian action.
I had to submit a trail edit 4 times to make it stick after many others had done the same already. You can only do what you can do. I always tell them they are liable for any incident if they have prior knowledge as if that would make a difference.
I heard stories about that feature, apparently sometimes they accept the changes and then revert them again for some reason. Like sometimes the wrong information comes from the government that classified a dirt road as a highway and Google eventually reverts any changes because they trust the government data more.