#1 these 'facts' have been reported by the media.....😕
#2 superannuation already in your account is yours, the company has no legal right or actual ability to take money from your account. The only action available to them is not to place any more funds into account. e.g. someone may have accumulated a large amount of unused sick leave which may entitle the employee to a prorated payout would be unlikely to get any money. I am not sure what would happen with any annual or long service leave.
#3 I did not see the comments by FAAA but the interest of some cabin crew here is how the pilots are treated if guilty. A number of cabin crew have been sacked for theft, very minor by comparison with the allegations against the pilots.