Russell, I think you'll find that Helen Kelly was clear in the interview on Morning Report on 27 october (about 8:45 into the audio) that the actors were _never_ seeking a collective agreement (i.e., a collective employment agreement) because they were not employees and wanted to maintain their status as contractors.
What they were seeking was an agreement to collectively bargain as contractors. That fits with the resolution you cite that what was at issue was a 'collective -bargaining_ agreement' (my emphasis), that is an agreement to bargain, with contractors, on a collective basis (so as to avoid people working side by side, doing the same job, being paid differently) and _not_ a collective employment agreement.
Helen Kelly was right to claim that the actors had never sought a collective agreement. This is not playing semantics; contractors can collectively bargain without it resulting in a collective agreement (understood in NZ as an employment relationship). Actors wanted to be contractors bargaining collectively.