The Fed's interest rate hike Wednesday was warranted, says Shana Orczyk Sissel, saying that it just takes one of the Fed's previous three rate cuts aways. She adds that the oil "supply shock" is something that's impactful enough to the U.S. economy to tilt the Fed's hand toward hiking further. However, current strength in U.S. consumers via retail sales and similar prints have Shana questioning that narrative short-term.