iirc from the early days of my S4, they released an update that fixed some of the red tinting/black crush that happened at low brightness levels.
seems that same AMOLED flaw is present here, but I would imagine they can tweak it a little bit.
the tiniest touch of brightness (i.e. 5-10% vs 0%) will take care of the red tinting on blacks so it's not too big a deal. maybe once(if) we get root access!