According to the story, CHN actually DID go to the school, unless I'm reading this wrong:
Canterbury's statement described the players' conduct - after they had been to a school visit with the club - as demonstrating "an unacceptable lack of respect for their teammates, their coach and club officials, our hosts in Port Macquarie and fans of the game everywhere".
I doubt either of the players will take legal action, if they do they will probably just make things worse for themselves. The code of conduct is really clear, and the instructions given regularly to the players is really clear, as attested publicly by multiple sources.
Now that this is done, the club needs to make sure and follow up. It seems as though they are doing the right thing by all parties involved in this case, however they also need to make sure and follow up on every single case that comes up in future involving a RL player, no matter what club they come from.
When RL does resume, whatever shape it takes, the climate for players will be different. They will probably be getting less pay, and with unemployment likely to be at least 9% or more for a fair while, they will need to be careful to hang onto their jobs. These two players are probably going to end up being the poster children for how to throw away a great thing.