[spoonjim]

This uses the economists' definition of "productivity" creating a confusing headline.

In reality, "productivity" as a layperson would understand it hasn't increased at all and the reason isn't very "curious." What's happened (by the economists' own conclusion) is that more people are ordering take-out and fewer people are eating in the restaurant, causing the restaurant to make more money per unit of labor. This is a trend that is probably going to make things like social isolation etc. worse, so not really something to celebrate.