Probably not. I believe ATC assisted with three unrelated VFR-in-IMC or VFR-on-top-of-cloud incidents in various parts of Victoria yesterday. THis crash is not included in those.
VI, it was VH-TAU in trouble, heard on 120.75/124.1. VH-QQT did a great job of assisting, kudos to you Sir ! I can assure you it was scary listening to it unfold.
Also being investigated by the ATSB
https://www.atsb.gov.au/publications...-2015-106.aspx