Yep Beer Baron like we've tried to explain to you and over again.
Landing on 27 in YMML doesn't afford a lot of margin unless you are light and the runway is dry with a headwind.
So I'll REQUIRE 34 thanks and request the RNAV, go ahead the star...
That'll be the ARBEY 5Z arr RWY 34 FL390.....
I can't speak about YSSY as I hardly ever land there.
p.s. Yes I know he's not ATC..