Maybe they figure they can go double or nothing on the Soccer Field since they didn't do all that well on the Battle Field last time they tried this annexation shit.
My guess is that this statement has less to do with Argentine Soccer than El Presidente's attempt to enhance her flagging popularity by showing that the National Team shares her deluded sentiments on the Falklands, especially since she's discovering that you can only go so far on good looks before a continual blonde moment occurs, even if you're a brunette.