It says nothing about anything, really. There may be specific jurisdictions where Apple maps or Google maps falls over because that is an area they happen to have some bad data for - we can't really tell.
Strategically, Apple maps is in a good spot for Apple - Google's offering isn't the major choice of users for a piece of critical functionality.
Apple maps is installed by default on iOS AND is the default mapping app when you tap an address - and you CAN'T change that default on iOS. Given that, their usage numbers aren't as impressive as all that.
Strategically, Apple maps is in a good spot for Apple - Google's offering isn't the major choice of users for a piece of critical functionality.