Is it though? A few months ago Apple Maps gave me wrong directions going from Custer State Park to Mt. Rushmore (two major tourist locations relatively near one another).
At least here in western Norway, Mapbox’s directions are incredibly buggy, to the point where they’ll send you on a 150-kilometre scenic drive (including two ferries) to avoid a tunnel instead of going 15 kilometres straight through the mountain. This is apparently because they’re rolling their own telemetrics-based data on top of the OSM road network.
Then again, Apple Maps (on DuckDuckGo) seems to think I that want my maps labelled in Indonesian, so you may still have a point.
