This argument seems silly when the world is already full of code like "self.view.frame" and almost any class uses @properties, which are very natural to access

This argument seems silly when the world is already full of code like "self.view.frame" and almost any class uses @properties, which are very natural to access with dot notation. Of course it's important to realize what dot notation actually does behind the scenes and use it properly. But I don't think that's so hard. The author just seems to be clinging to old ways out of stubbornness.