I disagree. Developer machines have to be open, others maybe yes maybe not. Users can choose their security model by the machine they buy.

The closed model has been very good for both developers and consumers. If we use Android as a counterfactual to iOS there are entire swaths of apps that are available on one that are not on the other. Android is more amenable to open source apps and whatever Apple doesn’t on its store. But it is also easier to pirate and download cracked software.

My own interest in making music exposed me to a stark difference between Android and iOS. There is an enormous number of audio apps available on iOS that simply don’t exist in Android. There are a fair number of apps that mirror windows and Mac apps but are far far cheaper on iOS. I am convinced that the console approach to iOS apps is responsible for the existence of a lot of apps that wouldn’t be offered otherwise.

We are better off with a mix of platform types. I can’t imagine any real way a development machine could be completely locked down. They have to be able to run arbitrary code.