Both sides of this issue are welcome as many are afraid of revealing their point of view as they would be labeled a bigot or racist. 
Most other countries mentioned, side with banning this covering due to common sense reasons & not necessarily their religion.

I believe Australia is either planning or has instigated the requirement that immigrants have a time frame to integrate with their society & this includes face coverings, language, & other customs from their prior country.
This makes sense as history has shown that failure to integrate with their country of choice results in expectations for separate learning facilities, their prior country holiday periods, separate communities & other customs that often lead to conflict.
In the U.K. & other countries these communities have many unemployed also police refuse to service after dark. 
Face coverings are the most visible, restrict communication, driver peripheral vision loss, security concerns, sex unknown & use misunderstood.