Perhaps, but we can say that there are certain reasons why the public transportation can be not very good in the developing world.
Imagine that we but every country and their development index and their public transportation development index on a XY graph? Would US still stand out?
Let's assume that it does. Then we can say that US is a global outlier.
I now see where you are coming from and based on your definition, it makes sense that US is a global outlier. However, the dimension of developed status of a country was not at all apparent in the original context which was only about WFH, commute and public transport.
