This is a real-time visualization so I wouldn't expect anything else even if it was showing USD, it's not like the supermarket immediately turns around and send

This is a real-time visualization so I wouldn't expect anything else even if it was showing USD, it's not like the supermarket immediately turns around and sends my payment to someone else as soon as I grab my grocery bags. If you just take a 10 min snapshot of transactions in any currency I don't expect to see a lot of transactions flowing to each other.