That tackle was a Natanui stumble away from being a very dangerous spear tackle, and could have ended very badly. He needs to be pulled into line, but the problem we have is that the WA media will convince him he is doing nothing wrong, is being victimized by the Vic-centric AFL and that he should continue to play the game hard.
As for the fact that Freo would be up in arms if we had a player suspended for that, we see our players get time for much less serious stuff, and the media stay silent on the injustice, that is what gets us up in arms, not the actual penalty.