If they have not been agreed previously, was this not a major failing by the union negotiators when the current agreement was tied up? Did they not consider what would take place when December 25th/26th fell on a weekend and include this as part of the agreement before it was agreed?
That's exactly my problem with it.
I can understand that the contracts won't have provision for things like the Royal Wedding next year (I'm not sure whether I will get a day off work, for example, as it's not the kind of thing you expect when negotiating a contract).
However, there are clearly going to be years when Christmas is at the weekend - roughly a third of years.
Guards can claim that other employment conditions don't affect them (e.g. millions of people are faced with compulsory redundancies, pay freezes, pay cuts, working harder to cover the fact companies aren't hiring new employees, people forced out of Final Salary pensions). For example, in South Yorkshire we will have *hundreds* of Police redundancies, council staff face a 5% pay cut, thousands of other people live under threat of redundancy and I'm certainly not getting a pay rise of Christmas bonus!)...
...however employment law does apply to Guards. And a contract which says you have no right to extra pay on 27 December means exactly that. I don't know why Guards are so keen to defend their Union when the Union seem to have been so negligent at arranging the contract.
As for the "success" of the Union at improving conditions, you have to accept that privatisation has been brilliant for Unions. They are a lot more powerful now than they used to be - short term TOCs are so desperate to maintain profits that they are desperate to keep trains running, so have bent over backwards to make pay rises significantly "above average". If I threatened to go on strike, my company would replace me, many people have found their jobs moved abroad etc. You can't do that with Guards, and Unions know this. Perversely, Bob Crow has benefitted from privatisation significantly more than most...