No restaurant in Australia had a Michelin star. How did SA change that?

South Australia has made culinary history this week, with 11 eateries becoming the first in the nation to receive world-renowned Michelin stars.
The red carpet was rolled out for the Michelin Man in Adelaide, dishing out 10 one-star ratings and, and one two star rating.
So how did South Australia get all these Michelin stars?