I see about a dozen articles like this every year.
They are always amazed at a few of the same things, and always, manage to invent something that they find "common" in Buenos Aires that is, well, not common. How many pizzerias in BA? How many put pineapple on a pizza?
How many restaurants in BA will sell wine by the glass? 90%? and yet she tells the world, it doesnt happen here.
Sorry, this may be the kind of thing for a personal facebook post, but as a travel post, I expect just the slightest bit of research and due diligence.
And I cant remember ever being in a restaurant in BA that wont bring you black pepper if you ask- and my wife has, every single time, for fifteen years or so.
I lived in LA for 10 years, and my guess is she doesnt know squat about that, either.
PS- currently, she lives in Barcelona- and, guess what, when she wrote about that, she was Astonished to find out they speak Catalan in Catalonia. Who knew?