It's a complicated question because I believe that all material is fit for for poetry, even far back " out of date " stuff. And surely bush poetry is a vehicle for relating to our historical development. Even the modern poet Les Murray wrote a ballad about Jimmy Governor.
Is it a question of balance, does bush poetry relate so much to the past and so little to the present. I don't know, there are plenty of performers I hear at the bush poetry venues who do contemporary themes in bush poetry. But in the wirtten competition entries that are published as winners there does seem to be a large proportion of themes relating to the past. Is that bad ?
Or maybe it is a question of language. Is it the case that the bush poets are speaking with the voice of a bygone era and not with a voice that is familiar to the contemporary ear.
In the performances, Greg North, Murray Hartin, Neil McArthur et al seem to be able to relate bush poetry to contemporary audiences with contemporary speech, should we take a cue from them?
Is it the writing, have we failed to put in the work of listening to contemporary speech and speak that in bush poetry writing? Some of the written stuff that I see in bush poetry doesn't look anything like the speech that I hear on Q&A

Should bush poetry sound like everyday speech, maybe it should sound " poetic "
maybe "poetic " is bound to sound old fashioned to the untrained ear.

These are my rambling thoughts.
What's the answer Perhaps there is nothing at all wrong with the style and content of the bush poetry..
I know what I think, but maybe I am wrong so I'll reserve my opinion.