To sort of play devil’s advocate we could say that Greedo could be seen as a stereotype as he speaks a rare African language. We could even say the Tusken Raiders draw heavily on Indigenous American tribes and that the Imperial Officers were “British” to draw on the American Revolution. Irvin Kershner said as much. Star Wars has always been this way. The difference really is that times change and things that might be socially accepted at the time can come in and out of fashion if you will. I don’t think there was any ill intent. It was only to make it a lived in story to show the grandeur of the different cultures within the galaxy to give the audience something to hold onto subconsciously. For the record even General Grievous was designed to have a Russian ascent according to Matt Wood and Ahmed Best has stated how Jar Jar was a fun voice he did for little ones in his family.

Rather or not it’s right or wrong is up for debate but to say Star Wars hasn’t always been this way just isn’t so. It’s been the case longer than that.