if it's so in the right why sack the workforce, page-3

The company didn't sack everyone. From my recall of the announcement they "sacked" about half of the staff. And they did so only very reluctantly. Find the announcement. Dr Walker paid eloquent tribute to the dedicated staff whose employment the company had no choice but to terminate given the uncertainties surrounding the shutdown order by which the company must abide until further notice from the Qld Govt.