Spot on. I coached an under 18's side a couple if years back that did this in every photo. None were Nazis that I know of.You should listen to people younger than you sometimes Joffa, it may give you a better perspective
The players in question are of an age group that played a game where if someone made that symbol and you looked, you got punched. It was a silly high school game that was around when they were growing up and it had been around for years before that, as I am older than them and experienced it myself.
In the image there's also an indigenous player doing it and there's indigenous players standing in that image. The first time I saw the picture I immediately thought about the circle game, if you are of the age group you would've picked up on it pretty much immediately too.
If the intention of the gesture was white supremacy there wouldn't be indigenous players either taking part in it (as seen in the image) or standing there willfully accepting it and not taking issue with it either then or afterwards (as evidenced by no commentary from teammates about it whatsoever or anyone else on opposition teams).
The only ones that took it straight to an issue of racism were those in the media and they did so either disingenuously to get clicks, or they are completely out of touch with people of that age group. Probably a mixture, but if you are mid 30's and under there's a good chance you'd know about it. Depending on the age of the journo it's either one of the two.
Just because a symbol may have multiple meanings doesn't mean one meaning must always supplant the other meaning. Context & intent is important.
With that said, and with the supporting evidence available, if you still believe it was a nod to white supremacy then you are like the journo's reporting on it - either being deliberately disingenuous, or out of touch with people that age.
My opinion is that the media did it deliberately to get clicks knowing full well what the intentions of the gesture were, and that you are just out of touch on this issue.
The media would have known this but pushed the story anyway.