Yesterday (5 May), the OZ travel advisory for TL dropped to level 4. The accompanying email notification of the change also includes a few notes on what actually changed. This change notification is a good thing.
Keeping in mind that this is all relative, things have not been as good for quite a while. The 2nd round presidential election is on next Wednesday and it would be reasonable to expect some security issues between now and then. The cynic would say that by dropping to level 4, it now gives room to raise it again when things do deteriorate.