Was targeted as well - did not receive a call, but a quick call to my concierge confirmed this. Same "14 days to take effect". Some data points:
- New AA account this year - previously credited all my OneWorld flying to BA.
- Linked my AA and Hyatt accounts when partnership was announced
- Registered for the Platinum challenge in June, and ended up with Gold for the year as the result of that
- Was offered another Platinum challenge in September for an additional 3 months of status, signed up again, but only had a couple flights since
- 70+ nights to date, roughly half are awards or CC nights