No offer.
Could it be that AA is using a "random" scheme for this promo?
[They are going to send out XXXXX of these, and the recipients are chosen randomly.]
As someone who occasionally works in marketing optimization, I seriously doubt it's random unless it's done for A/B testing.
I got the promo too. Had two long PE flights on CX this year. Only halfway to regaining Exec Plat status. May not happen for me this year.
I'm guessing AA's trying to round up potentially wandering sheep.