Well as I mentioned up the top of this page, it's in plain sight on intracx, so I'm not sure who you could blame other than yourself?
They will do what they want. Expiry or no expiry they dictate whether such a scheme exists or whether it is even referred to. It is not something which is contractual so even if 'we' had noticed it and said something, I do not believe for one minute that it would have made them pay profit share to the staff. They would simply have come up with some reason not to pay it anyway.