1. Apple users tolerate the status quo through inaction, which is the centralized distribution of software. 2. Governments take advantage of this status quo to control apple users.

If it was the case that the OS was open, then the US Gov. would have no leverage to prevent the distribution of the software mentioned in the article. However apple's stakeholders enable and justify the centralized software distribution as a feature rather than a bug.

Developers are in on it too: the locked-down ecosystem is more lucrative for them because there are higher entry costs to producing software, and thus reduced competition. It prevents piracy for example, at the cost of preventing the distribution of pretty much all open source software.