I would need to re-read the act, but the gov website[1] indicates you are correct that these requests are served to organisations and not individuals excepting sole traders.
[1] https://www.homeaffairs.gov.au/about-us/our-portfolios/natio...
Oh? The reports I read were that they could compel an individual to do something and not tell their employer.
I'm as suspicious about the Assistance and Access Bill as anyone, but the "telling an employee to implement a backdoor without telling their employer" is really a red herring and I don't know why the Australian tech community was so keen to go along with that.