This is clearly mentioned on Department website to upload these forms i.e Form 80 and Form 1221 for a faster visa application process.To avoid any delay in your application, its better to attach these documents along with other important documents. Its not time consuming else its time saving for gettting the outcome faster.
Achieving a faster visa decision
Most ‘complete’ applications are finalised within three months of lodgement. Incomplete applications are less likely to be finalised within three months of lodgement because additional documentation may be required before the application can be finalised.
A ‘complete application’ has all required documentation, including form 80, form1221 and police clearance certificates, uploaded to ImmiAccount and healthexaminations undertaken before the application is allocated for assessment.
Refer to the document checklist for your visa subclass for details of required information. Attach documents to your application or update your application details using ImmiAccount.