I'm sure that every airline is different but where I work, below stable approach gate (1000' AGL in widebody) Go-around is MANDATORY for the following, -5kt/+10kt TTS, automatic windshear callout, more than one dot high/low. Also, you cannot even contemplate an approach if the crosswind exceeds the aircraft max. (777 = 38kts dry runway). It seems to me that according to Gestapo, several of these conditions would have been met, and known about prior to commencing the approach.