any proposal is put to a free vote
The problem is that the vote will only be put to Union members and most of us who don't agree with the strike have resigned our membership so will have no opportunity to vote. That leaves only those who voted yes the first time round and who have probably already lost staff travel to vote for the next proposal. This may not be as cut and dry as you think unless WW finds a way to poll the entire crew community as he suggested in one of his Q&A sessions.