Question: have you read the article? Loyalty rate is defined as the number of users who switched from one platform to the other in the last year over the number of user on the departing platform. They even say that the absolute number looks different because of the bigger market share of Android.

Now, your argument is that someone who chose to stay with a device with smaller CB is more loyal, but what the article is saying is that out of 100 Android user, around 90 bought a new Android when replacing the phone, while only 86 Apple user bought a new iPhone.

I don't see how you dispute this fact as an evidence that Android users are more loyal. Even an argument on network advantage doesn't work because Android phones are very compatible with Apple ones (not the other way around) and the Apple ecosystem is still pretty big...