Why are the rules never applied to these guys?

The Australian Open apparently has a rule, banning political slogans. They even enforced that against fans who were supporting Chinese player, Peng Shuai.

Not so when it comes to the 'Free Palestine' crowd. 

AJA received a report from a fan who wanted to enjoy the tennis with his family but was disappointed that the 'Free Palestine' activists had decided to try and turn the sporting event into a protest. 

Do you support bringing more politics into sport?