It's kinda crazy. Our electoral system has party votes and local candidate votes, and we saw a right wing campaign to manipulate the system. The left gained two seats, a new centralist party obtained 7 seats, and yet somehow the right kept the same number of seats, with current results showing the current right government can retain power. This is because of an unpreciscented 11 seat overhang (extra seats being added due to how seats are assigned for local electorates) due to the before mentioned campaign. The previous record overhang was 3.

Now people know this manipulation is possible I worry about future elections if we don't tweak how seats are assigned.

It's worth noting than special votes (overseas citizens, people voting outside their electorate) haven't been counted yet. Last election the results of special votes gave two extra seats to the left. If this happens then the new centre party Opportunity will hold the balance, which is certainly better than the ones holding the balance now.