If an airline wants to change a program for the BETTER late in the year, AFTER they have committed to program changes (good or bad!) for the following year, obviously no one is going to mind.
The protection of early disclosure is against changing a program for the WORSE late in the year.
The goal is NOT to hamstring the airlines, just to give us the opportunity to make an INFORMED decision about which program best meets our needs and gives us the lead time to pursue that program's elite program.
I hope UA doesn't change a thing for better or worse!!