There's various degrees of "solved" here. Identifying a generic area is cool. But I wouldn't call it a "solved problem" until it can consistently beat for example Rainbolt in accuracy. And there's no good comparison of completely random roads posted so far - mainly popular locations.

Basically, it's one thing to pick out a specific thing photographed thousands of times, but another to get a random country side view and pick out all the unique features for a very precise guess.