Just because you participate in some meetings in which you ask for various concessions doesn't necessarily mean you have to accept or support the outcome. I know manufacturing the appearance of consent was the only reason why the City had these meetings, but that doesn't mean the participants, in this case PBA, has to play along.
Well far be it for the PBA to actually state up front that it wouldn't support the plan, Chuck. PBA used the seat at the table to gather intel and figure out how to fight it.