Hi there and welcome to OSM. Its best practice to edit an existing rather than deleting something and redrawing a path. This maintains the history of edits over time. In this case your edit is also less detailed in some areas than the old path.  I will do an edit to better reflect some of the old path. A good guide for new editors is also the Australian Guidelines at https://wiki.openstreetmap.org/wiki/Australian_Tagging_Guidelines

Cheers