Guys,I'am more and more convinced now,that this was an honest mistake.
Regarding language,99 times out of 100 TAP pilots conduct their R/T in Brazil or wherever in English.The only thing they say in portuguese down here are good mornings,thank you etc..The word for "go around" in brazilian port. is completely different from that one used in portuguese in Portugal ("arremeter" in Brasil and "borregar" in Portugal,but I guess the Portuguese pilots would understand the brasilian "arremeta!" as I would understand their "borregar".)The TAP pilot apparently,said that he thought the instruction was given to another aircraft coming in behind him.Those things sometimes happen even between americans and Brits,don´t they?
In Gatwick in 1988 I heard the following:
-Ma'am,let's make sure we're speaking the same language(very southern american pilot)
-Ok,I'm speaking english,you?(female controller without missing a beat)