Right, the article doesn't make sense. The Yen jumped on the rate hike (meant to combat inflation.) Both the hike and the increase in the Yen is going to result

Right, the article doesn't make sense. The Yen jumped on the rate hike (meant to combat inflation.) Both the hike and the increase in the Yen is going to result in an unwinding of the carry-trade. This then puts further upward pressure on the Yen as investors buy Yen to pay back those debts.