Pilots are not the only ones encumbered with the ERC system in FR. And I remember there was no vote on who was to be a, by the company paid, ERC rep, if there was only 1 candidate. And who in their right career mind would stand against the mgmt suggestion.
I asssume this is the same for the proposals; There is no real vote if there is only one offer on the table, the one mgmt presents. (I certainly never heard of any vote over a pay-increase offer in my 14 years there, of which about 11 of them under the ERC system.) And they have therefore hitherto been seen as accepted by default. Except now an alternative of "no deal" has come to the fore. (An option not contemplated by a money focused mgmt that never thought anybody would say no to a pay-rise.) So voting rules, set by the creators of the system, has emerged to swing marginals.