For anyone interested, Freestyle Libre sensors and other flash glucose monitors are fully subsidised through NDIS but only to a select proportion of T1 sufferers. Including under 21s, pregnant women, pensioners with a particular card, and anyone with a DHA healthcare card. The latter seems to be only for those on benefits from what I can see.
So 58,000 are eligible of the estimated 180,000 T1s in Australia. Otherwise it's $95 a fortnight.