I like the walled garden but its a bit of an exaggeration to say they are doing a good job.
Just last week, while looking for a password app, they had a "validator" app with in-app purchases using the old google authenticator logo in the #1 position. Worse it was an ad; someone saw all of that, both as an ad and as an app, and let it go.
Sorry, Apple iOS is not a Wall Garden, it is a Prison Cell. A Wall Garden / Gated Community allows for the deployment of personal security such as a home security system with monitoring company, video surveillance, and personal security guards. Apple does not allow any if that. You cannot even preemptively block known Command and Control services, best C&C servers operate in plain sight, such as X-Twitter and Facebook on iOS.a