The theory of a contract separate and apart from the MP T&C might be tough to prove.
That is not the theory. While I am not litigating the case, my understanding is that the argument is that the
general terms of the terms and conditions apply, except as modified by the
specific promise of certain lifetime benefits to million milers.
It is not two contracts. You are just piecing the contract terms together from different sources.
UA should just do right by legacy MMers and moot the case now while they still can.
That is not in UA's mindset. They see Million Milers as a bunch of whiners who should be happy with whatever UA decides to give them.
There is also the issue of those who had not yet quite made it to Million Miler.