None of the media coverage I've seen or can find seems to mention this supposed paycut due to more hours at the same pay, including in really sympathetic outlets like the Guardian which describes their demands as being exactly what I claimed. In fact, the only change to terms I can find anywhere that even vaguely resembles that is that maybe some staff will no longer get the same generous overtime multiplier on Sunday, and that's from the literal World Socialist site which is vague enough in their wording that I suspect they might be playing sneaky word games again. (They're... not the most trustworthy source.)