And why should they now put the original offer back on the table after BASSA/UNITE REJECTED IT!!!
Was it "rejected"? Or did the Union say "they would not recommend it to their members"? A subtle distinction, perhaps, but surely significant.
In any case, whilst one half of the Union corporate brain was saying that, the other half called the strike which guaranteed [WW keeps his promises] that the offer would be withdrawn. The Union therefore ensured that their membership never got the chance to read and consider what was on offer.