This is BS. Whatever payment processor they develop will need to interact with all of the major credit card processors: VISA, MasterCard, Discover, and American Express. All credit and debit cards use these four brands as the backing network. There is no way around it.
Nobody is going to add a new credit card brand, not even Steam. Amazon doesn't do it. Twitter doesn't do it. Ebay doesn't do it. Nobody does. If they did, they would face immediate retribution from the VMDA empire. Their payments would cease, and Steam would collapse overnight.
True, this is good news. But, it should not have come down to the entire fucking government of Japan weighting in on the global impacts of this insane decision!
Is this truly the amount of mountain-moving we have to do to counteract a single organization's opinion? There is a clear difference in effort required between one side and the other.