How far is the walk to boarding at Melbourne domestic?

On a recent Sydney Melbourne Jetstar we had to walk across the tarmac getting off the plane then what was no less than a 15 minute walk to baggage collection. No travellator just a long walk carrying hand luggage. Unless you like walking don't fly Jetstar into Melbourne the the walk could bring on a stroke or worse

Domestic
Australia-Sydney
Australia-Melbourne - Tullamarine