Just saying

Here is a list of recent and successful Australian tech companies that have bootstrapped themselves and then gone straight to the US for VC or PE funding:

Campaign Monitor
RetailMeNot
BigCommerce
Atlasssian
99Designs
Freelancer

As far as I know none of these had local interactions with any incubators, accelerators, IIF funds or other Australian VC.

The last three big successes which had Australian VC funding were:

Looksmart in 1995
Seek in 1997
Hitwise in 1997

Regression to the mean anyone?