A very fair point was raised by the commentary team regarding the one-dimensional nature of Australia's bowling attack - there were very slower balls, cutters or wide yorkers to build pressure. Pacers were primarily bowling full and straight at 140-145 km/h, making it easy for Stokes and Morgan who played exceptionally well. That's something to learn for the team.
It's weird seeing Australia crash out this early given their lineup is arguably the second best in the tournament behind India's. It is difficult to point one particular department either. Just unlucky perhaps.