First, it's not the country that is being used as an argument. So the point is moot.
Second, this is not about "Developed/Underdeveloped Countries". That would be incredibly backwards. It was to show that not everywhere has unrestricted access to international trade, and that cryptocurrencies can help with that.
Just as an example: despite the crisis, Greece is a developed country, yet (because of the crisis) they are also applying very strict capital controls.
So, despite being "able to pay with Visa in his/her country", a Greek could also benefit from something like Bitpay.
First, it's not the country that is being used as an argument. So the point is moot.
Second, this is not about "Developed/Underdeveloped Countries". That would be incredibly backwards. It was to show that not everywhere has unrestricted access to international trade, and that cryptocurrencies can help with that.
Just as an example: despite the crisis, Greece is a developed country, yet (because of the crisis) they are also applying very strict capital controls.
So, despite being "able to pay with Visa in his/her country", a Greek could also benefit from something like Bitpay.