Frankly, I don't understand Apple's decision in the context of the idea of being customer-focused. In other words, if you, as an organization, make decisions for the benefit of your customers --or, at the very least not to their detriment-- how can you justify pushing out Maps and not keeping Google Maps on there?
OK, I get it. It would have cost more. A lot more. Fine. That's your problem. Pay Google for another five years exactly because you care about your customers. At the same time, put out your own Maps app and --funny enough-- compete on the merits of the app, not the hype.
If in five years you can't turn Maps into an app that people will choose over Google Maps, then, well, why are you in the mapping business in the first place?