quite simply there is no law that compels any person or corporate body to employ any given person, hence the dismissals CANNOT be UNLAWFUL, the company can be found to be in breech of contract, but the dismissals in the UK will be dealt with by an EMPLOYMENT TRIBUNAL as established by the proceedings to date, i.e: the VETA employee's had to be employed "In the UK". An employment tribunal has limited powers .
To put it simply you cannot be forced to work for someone whom you do not wish to work for, equally someone (Body corporate or individual) cannot be forced to employ someone they do not wish to have working for them. Hence the ONLY remedy available is COMPENSATION for breech of contract. The court/tribunal will generally take the stance "What is reasonable"/how best to settle this argument (remember in litigation no one EVER wins). It will look at the settlement of those who acceptedthe offer and probably deem it to be reasonable, accordingly they will probably take a dim view of those who failed to settle.
Most litigants are convinced they will win, they also twist the facts to suit their own side of the story. most leave court disappointed !!!