Sure, but that's not the agreement both parties entered into. You can't simply go back on an agreement because you decide halfway through you won't like the res

Sure, but that's not the agreement both parties entered into. You can't simply go back on an agreement because you decide halfway through you won't like the results at the end (obviously China is testing that theory, so maybe you can). It's simply not in good faith. Obviously the move from China makes logical sense from their perspective, but that means that the protests are equally logical from the HK side.