Two reasons: 1) In the pre-Moshiach world only actual things matter not potential, not-withstanding the great advantage of the potential over the actual. 2) We follow Beis Hillel who connects it to מעלין בקדש ולא מורידין rather than to פרי החג. All eight days of Chanuka have nothing tot do with Goyim!

The well known argument between Beis Shamai and Beis Hillel whether to add or subtract the total number of lights each successive night of Chanuka has been resolved like the Beis Hillel. The message in this is that we must grow in holiness.