He's not wrong. Africa is one of the largest companies associated with crypto-currencies, and there is a surprising number of people associated with the currency, even though, only a limited amount of them have access to the internet.
A lot of the countries are entering the emerging phase, and don't have established banking systems, so there is a void of crypto-services, that could easily take over and replace banks completely, which would be a first.
Crypto-banks are going to be very interesting in Africa.