Why not just view the google earth track of UPS902 yourself its right on that page. Put the google earth “camera” in long beach approximately where the alleged observer was (there are buildings and hills to use as a point of reference), adjust the time of day to match, and see for yourself, just where UPS902 was. It’ll take you 3 minutes, max, do accomplish this.
Unless you suspect FlightAware.com’s historical UPS902 tracking data is altered in cahoots with the airplane theorists...
Just take a moment and try it.