You're correct that typically high demand for bonds would push down interest rates. However, in this case, the headline is referring to the "indirects" portion of the auction, which refers to the percentage of the auction that was purchased by entities other than primary dealers. These entities are typically institutional investors, such as hedge funds, mutual funds, or pension funds, who are looking to invest in the bonds for a higher yield. So, in this case, the high demand from these non-primary dealers may have driven up the yield on the bonds, despite the overall demand for the bonds being high. Does that make sense?