Yes Gronk, their contention (if I recall correctly) is the home ground advantage plays itself out through human factors in the referee. When the home crowd boos, then the referee blows his whistle.
Check the crowd figures, see who has the biggest support base at ANZ, and tell me again why it isn't our 'home ground'. It matters not what pitch it is played on, it matters how loudly the crowd scream for a penalty.
Again, check our record before the 'crap' years, we were dominant at ANZ. We won a game there last year; we dominated the Tigers - but gave them 2 free tries to lose the game; and lost a nail-biter there to the Dogs.
We aren't surrendering home ground - in fact teams are surrendering it to us when we play there (we get on the referees back and bay for a penalty).