Slightly off the topic, but why would you group Hardik with players who have brought the game into disrepute and a player who committed assault? I’m not exactly sure on what he did say, but I don’t think it was anything derogatory...
And the reason for the Aussies being booed is quite simple, I remember Lehmann openly asking the Aussie crowd to boo and make Broad cry in the Ashes. The Aussies have for long portrayed themselves as the hard but fair men of cricket, with their imaginary line of fair conduct and misbehaviour being arbitrarily moved and excused whenever it’s an Aussie involved in any controversy. Quite simply put, the Aussies were hypocrites in nearly every controversy during Lehmann’s tenure and the two main culprits are receiving the fair end of the stick for that. Given that it’s their oldest and fiercest rivals who are involved in booing them (nearly every other country’s fans seem to be feeling sorry for the duo), it’s quite understandable really.