"Google Maps is one of the main lock-in apps that keeps people inside the closed Google Play Services ecosystem."
I can't speak for others. But as someone that tried the Apple "ecosystem" after being on google, I have a big appreciation for it. A lot of websites/apps these days use google for single sign-on, pretty much meaning that I don't have to type my damn login every time I install a new app, etc.
But, on the Ipad, I had to type my password in so many times. And my password is 25+ characters long, with mixed upper and lower case. Easy on a keyboard, but on a touch-screen keyboard it is a PAIN.