Exactly same timeline...i too lodged my visa on 14th June and got contacted by GSM.Adelaide on 21st June.Hello,
I lodged my 190 visa on 14th Jun 2017 and according to my knowledge the CO contact should take a month or so.
Well, today 21 Jun, i got contacted by GSM.Adelaide and requesting for additional info: PCC, Medicals, functional english proof for wife and FORM 80. (i already planned to upload these forms in 2-3 weeks anyways)
Time to rush over things!