I think Google's brand power is by far the most important thing here. When people don't find what they're looking for on Google, the figure it's hard to find, o

I think Google's brand power is by far the most important thing here. When people don't find what they're looking for on Google, the figure it's hard to find, or they need to learn how to query better. When people don't find what they're looking for on Bing, they think it's Bing's fault. Edit: as for your actual question: possibly. In my opinion the quality difference between Google & Apple Maps is greater than Google vs Bing search.