That's their justification. I never had security problems on Android, and I actually find Android to be more cohesive. Just a few things where iOS is uncohesive to me: You can customize the keyboard, but it will not work everywhere the same. Apps will send you randomly through hoops to click some permissions things in settings. App settings are sometimes centralized, sometimes in the app. There is no single way to "back" to the previous screen.

I actually switched to an iPhone some time ago and was expecting it to be like you said. But I was shocked that iOS is actually less coherent and a mess in some places, and the App store could be curated better. To be honest the reason I still use it is because the hardware is really good and because it is pretty.