I'm sure Google knows more than the author about their own maps, but please give the author his due: he wrote a successful blog called 41Latitude that did a lot of in-depth analysis of Google Maps's display of information, and later led the Apple Maps team. If he has something to say about information density on maps, I'm inclined to listen.
I don't think the fact that the author prefers the map he designed means anything about which one is actually better or more usable, regardless of his credentials.
Don't you think it's possible to benefit from someone's expertise while recognizing and taking into account their inherent bias? It's generally difficult to find the former without some degree of the latter.
I'm not sure that puts him in a position to be trusted to criticize google maps. Apple maps has been considered inferior to google maps since its launch.
Just because he has ideas about how to pack an overwhelming amount of information onto a map doesn't mean it's a good idea for normal users.
Apple Maps was considered inferior at launch, not since its launch. There's a difference. Apple Maps caught up pretty fast. There's obviously areas where Google Maps is still better, but there are areas where Apple Maps is better, and it's simply not true to say that it's an inferior product today.
Apple Maps has actually significantly improved since its launch, and I wish people would give it its due. I, for one, often prefer Apple Maps to Google Maps nowadays.
My main problem with Apple Maps has always been that it just shows too little information on the screen, exactly what the author now criticizes about Google Maps. That doesn't seem to have changes with the current Apple Maps.
My main (remaining) issue with Apple Maps today is it does not give lane information for upcoming maneuvers. Google Maps does this and I find it invaluable.
Don't mix up data and map design. Google maps is great because the data is unique, but I personally prefer other designs and think that Google Maps has very bad UX.
Apple Maps today is much better than Google Maps. In the context of the article, for example, Apple shows all the cities/towns that Google Maps did in 2010 but no longer shows in 2016.