Devils advocate (who happened to be an airline manager) would say, if the pilot body is coming to them with a proposal to improve productivity by 22%, then the DA might well say (in this order):
"Why haven't you done this years ago?", then
"OK, whatever is the basis of your proposal is obviously acceptable to you, so we're going to get a 22% improvement, but my starting point is you get no pay rise because that still gets us not even up to my competitor", then
"OK, fair dos, you can have 5%, but we're going to get another 5% productivity the next year".
Not saying it's right, but it's the way it works everywhere else in the real world.