Reading it a bit more closely it's not a pay deal it is an alleviation which means the company can't get CC to do what they want for a week and so they are dangling a carrot. A BIG carrot. Most of this money will only come into force if the crew operate one crew member down or somebody goes sick. It is not going to be paid with normal operation.
The union will not allow the company to operate an aircraft with less cabin crew than we have now and due to lack of crews the company has had to go to the union and agree this. It's almost like a fine to the company for not getting it's act together and means that it is an alleviation from normal terms and conditions and will not set a presedent. I think.
It's only for this week and basically because of shortage of crew and the fact that it is impossible for crew to work overtime due to working hours restrictions the company is having to provide a sweetener to those crew that have to operate with one less.
In other industries it is possible to let staff work overtime to cover a shortfall, but it is not possible here.
Is my thinking right? Somebody.