I wouldn't say "lying", maybe just over-optimistic (as usual). I also wouldn't put too much heed to consistency of her messaging either:
- 24 June "we are at this stage comfortable with the settings that are in place". 25 June - lockdown lite Mk I
- "We will not provide a list of essential workers, please use common sense". Couple of weeks later "here is a list of critical workers"
- "We are not going to put in place measures that don't work", and “When I get questions about curfews or exercise or whatever else, the fact is that will not … reduce the number of cases.” (when asked about curfews). Then later enacts a curfew
- July: "Secondly, and I have expressed this view publicly, but I have also expressed it to my colleagues, the Premiers and Chief Ministers in other jurisdictions [that] just because you reduce the number of people coming in, doesn't mean outbreaks aren't going to happen" (in reports that she was the only Premier to object to the reduction in international arrivals in July). August: asks for a further halving of the international intake to Sydney (i.e. a quarter of the number arriving in Sydney since Gladys' July quote)
Gladys has a recent track record of saying what she thinks people want to hear, and then back-tracking rapidly when it becomes clear something isn't tenable.
EDIT: Just to clarify, I do hope that the reopening can happen and is successful, I just think that Gladys is probably going to be pragmatic about things and not just say "oh, hit the 70% mark, let's go" in the face of new data/changed circumstances.