Official statement出来了,看来AA点数要升值了:
Last night, in a routine effort to better align American to industry
standards with other global carriers, American began collecting carrier-
imposed surcharges on tickets for travel on other carrier’s metal. This
change was intended for revenue tickets only, but the surcharge was
erroneously added to AAdvantage award redemptions on other airlines as well.
Except in the cases of British Airways and Iberia (where American
currently collects these surcharges), no carrier-imposed surcharges will be
applied when redeeming AAdvantage miles for award travel on other carriers.
Any customers who encountered this fee in error will be fully refunded.