They were included indirectly. The Dynetics bid proposed ULA's Vulcan Centaur as the baseline launch vehicle with SLS as an option. The Blue Origin bid baseline

They were included indirectly. The Dynetics bid proposed ULA's Vulcan Centaur as the baseline launch vehicle with SLS as an option. The Blue Origin bid baselined New Glenn but included Vulcan Centaur as an option. So both other bidders proposed a ULA rocket either as the primary or back-up launch vehicle.