The SCG and Gabba (GROUND - LENGTH - WIDTH) are almost identical dimensions, so it probably works better for us that we play at a different sized ground, even though a smaller ground might suit us. Brisbane play the Gabba beautifully.
By comparison, Giants Stadium is a longer ground (Length 164m) but narrower (Width 128m)
FWIW
MCG = 161m x 138m
Optus Stadium = 165 x 130m
Marvel = 160m x 129m
Adelaide Oval = 167m x 123m
We play narrower grounds better!