That's about the one good thing in the LOA. Straight from page one:

b. Pilots awarded vacancies at CDG or HKG will be provided with paper copies of the agreement and shall sign and return such signed copies to the System Chief Pilot prior to the start of any training for the FDA vacancy, or, if no training is required, then prior to the distribution of any benefits stemming from the pilot’s FDA vacancy award (e.g., seed money).

c. Absent extenuating circumstances, if a pilot later fails or refuses to sign the agreement in the required time frame, he shall be frozen in his current crew position for two years, as if his failure to sign the agreement had been a down/lateral bid covered by Section 24.E.1.c. Such freeze shall not result in any passover pay.

The Union at least realized the company would dic k this up to no end, and provided a legit, and legal way out of the whole deal. Just don't sign.