Your timeline is very helpful, thanks!
It is however missing the very first and last items....
1. Months earlier, AWIS breaks down, doesn't get fixed
....
99. Immediately after incident, AWIS gets fixed in blatant bum covering
Which ASA manager made their KPI by not fixing the AWIS?
ATSB report says the ATC supervisors only became aware of the deteriorating conditions when the Mildura aerodrome reporting officer contacted them to ask why aircraft were diverting there when the weather was so bad.
This is a monumental problem. It's 2016, and we have to wait for old mate in his airport ute to put two and two together and phone ATC about the weather?