I couldn’t argue with you, but here’s their answer. The arguments appeal explicitly to people “who remember when”:

> Need more convincing? How about a commercial operating system which doesn’t spy on you, does not report your online activity to anyone, and gives you complete freedom to choose the applications you want to use, however you want to use them? How about an operating system which isn’t tied to any specific hardware manufacturer, allowing you to choose the platform which is right for you, and fits perfectly well in systems with less than 4GB of memory or even virtual machines?

The doesn't spy on me is indeed a strong argument, considering we can't even properly trust linux distributions nowadays.