Bear in mind that the company, GECAS, ALPA International are all running about screaming "the sky is falling!"
Is it? It's still a negotiation, folks.
Ask yourself: if you were a pilot low on the U list, or one interested in doing anything for the profession as a whole, or god forbid in a j4j position at PSA or MDA, what would you think of the LOA?
Moreover, what do the U pilots really get in "return?" The ability (maybe) for an easier commute and the ability (maybe) to jump security at the domicile airports. Not a whole lot more than that, and it sells the future of the pilot group at U down the drain in return (or to Mesa, which is fundamentally the same thing).