Quote Originally Posted by AskaRay View Post
Is it because NZ and AUS are part of the EU?
Seriously asking if they're considered part of it, I'm not sure. That's the only reason I could think of to be honest.
In general: no, of course not xD
In terms of games though: yes, they are.

There are 3 major regions for video games, which are Asia (except for China), NA and PAL (Europe, Australia and NZ). Region lock from consoles works with these regions, so I assume Australian players got recommendations to join EU servers based on that concept.