I assume that the only reason we used the F-22 to strike jihadi targets in Syria was to see how they operated in Syria's air defense environment.
Because none of the jihadis have sophisticated air defenses to justify using that plane.
UPDATE: Others question the reason for the F-22. Was it some special electronic warfare capability needed?
I think we wanted to see if the Syrians detected the plane; and if they did, identify the cascading electronic reaction as word spread about being the first to see the F-22 in combat. That could be important information for us to have in the future.