Thank you for your response! The main point in your example is that USB-Type-C is one interface. You don’t have two separate interfaces for laptop and iPhone in this case. So in context of this article this kind of chargers (Type-C ones) are actually not universal. Meaning that they provide only one interface instead of many. The universal charger (again, in the context of this article) would have many interfaces (connectors): one for iPhone, one for Android-Phone and one for BlackBerry. In this case you would be forced to have BlackBerry connector even though you just want to charge an iPhone.