To update this thread for future reference.
Charge posted as
American Airlines Fort Worth
$4118.xx
Travel - Airlines
Includes my ticket number
Amex confirmed that I would earn 5X points since the charge billed as an airline and there was no mention of a vacation package anywhere.
I purchase LAX - NRT Flights + Hotel package.
Booked the flights for 9 days.
Throw- away hotel for 3 nights as it saved me $425 on each ticket.
Flights booked under I* which is an AA special fare.