100% agree, I lived in Melbourne for few years, try Flower Drum 2,3 times but I really can't feel is the best in the world. you are right, Fok Lam Moon even ar yat is much better.
same for the wine
Flower drum, to give its due credit, is quite good, but not the best; but it was voted as the best Chinese restaurant in the world by some eminent foreign publications (not Australian press). I really cannot remember which newspapers or magazines named it.