It would be the equivalent of Apple making a deal with Microsoft back in 97/98 that allowed them to stop their distracting fight against Microsoft and concentrate on making themselves better.
This whole Maps fiasco is a complete distraction to the iPhone, and it's not something that Apple is good at. They are amazing at hardware innovation. This is where their core competency is. Case in point, despite all the negative talk about how the iPhone 5 wasn't innovative, their latest iMacs are amazingly beautiful and futuristic-looking still.
Their software is okay at best, but not innovative. Their web services offerings are below average, at best.
There is no point in getting into a protracted ground war vs Google when it comes to Maps because it's a distraction and they won't be able to overtake Google. Companies like Yahoo that had way more resources than Apple when it comes to search have tried and essentially gave up. If Yahoo can't do it, how can Apple do it, where hardware wags the tail on their software? Better to keep focusing on maintaining/retaking the hardware innovation mindshare and lead.