I live in Adelaide so maybe the culture is different, but calling random people “wogs” has never been acceptable here. The word is acceptable in certain circles - for example, I have played football at many Greek and Italian heritage clubs and it was fine to distinguish between the “wogs” and the “Aussies” in the team - but I can’t imagine anyone is comfortable with strangers randomly calling them “wog” on the street. Especially if it’s confrontational/aggressive.