Australia does plenty of forest management. The problem has been in recent years it's been more dangerous to do controlled burning and the recent bushfires were so extreme the fire was jumping between the tops of the trees skipping the undergrowth completely.

https://www.carbonbrief.org/media-reaction-australias-bushfi...

https://www.theguardian.com/australia-news/2019/nov/12/is-th...

No what you are saying is not true or rather it's a deliberate obfuscation of the leading cause of the fires- climate change.

Rainforests that have not burnt before, burned last year.

The fires that exploded across Australia were unprecedented and never burn so rapidly and so hot.

Former fire fighter chiefs saying the opposite of what you are saying:

"Just a 1C temperature rise has meant the extremes are far more extreme, and it is placing lives at risk, including firefighters"

https://www.theguardian.com/australia-news/2019/nov/14/forme...