To end his argument in a sentence I'll offer you this: Of course the haka is unfair. In fact the various individual applications provide a distinct advantage for ALL the Pacific Island nations that perform one.
Just ask Fiji last night.
As for this so-called "rush defence", just stop it. Let's call it what it actually is, which is OFFSIDE defence.
Several times on Saturday night there were more Springboks in our backline than All Blacks.
Now, either those in green accelerate faster than Usain ever did OR they jump the gun and are offside. The easiest way to determine the legality of this tactic is to do what the NFL does and paint in 10m and 5m lines from the goalposts to the halfway on both sides of the field.
Automatically this would give the linespeople, referee's, TMOs and all us watching at home the clearest and fairest view on whether or not the defenders have in fact rushed or rushed before the ball was released.
Executed within the laws of the game the tactic is awesomely effective. Problem is, the key to allowing teams to rush up in defence is all about getting the timing exactly right. There isn't an expert analyst, commentator or past player on the planet who's convinced that this defence is legal every time it's used. And that's because it's not. Repainting the field would immediately end all such arguments.
But of course World Rugby will do nothing. Their biggest contribution to the sport this year was changing the official title of Women's Rugby World Cup to just Rugby World Cup. Their incompetence and idiocy has never better summarised than in that one, single irrelevant action. It says everything about World Rugby in a sentence.
A bunch of fish-heads who think changing a name is more important than fixing the game.