It's very easy to read the opinions of people living in Victoria and New South Wales at the same time as Kelly. My own ancestors were well established in Central Victoria at the time. They were poor miners from Cornwall. Family history study has never been easier now that the website "Trove" has newspapers from all over Australia. Some have come online in just the last year and more are becomming available every day. I haven't been researching the Kelly Gang story specifically but I've come across many articles as I wander through those newspapers. I've not yet seen one where Kelly, or any other "outlaw" was regarded as a revolutionary, or even a hero, AT THE TIME. You'd expect someone to have come up with the idea and written to the papers or produced an article on the subject. There were people still living who remembered the Kelly Gang when I was a child in the 1950s. He wasn't thought of as a revolutionary then either. I'm willing to concede I might have missed something but that's my two bob's worth.
Cheers, Joy