My guess would be QA found lots of problems, reported them, fought for them, and, at the end of the day, deadlines are deadlines and the maps app shipped. QA is

My guess would be QA found lots of problems, reported them, fought for them, and, at the end of the day, deadlines are deadlines and the maps app shipped. QA is not some magical barrier and usually is overridden when a go/no-go decision meets are hard ship date (like 'this device must be released now because there's an entire supply chain and retail chain that needs to be coordinated').