AAPT Members

The story quotes Appiah extensively, although not 'ex officio'. It does make mention of the petition (about 1/2 way down: search 'Hermes' to find the relevant paragraph). It only requotes Paul Corts, president of the Council for Christian Colleges & Universities from the previous 'Insidehighered.com' article (here).
APA pushes for hiring equality - The Daily Princetonian

UPDATE 12-11
The Daily Princetonian comes out in support of the APA:

Editorial: In support of the APA - The Daily Princetonian