The good thing is that with the creation of +hit as a possible item/monster stat, there is a possible way to control further gear progression without having to fear scaling brickwalls.
There are only 3 stats now that don't have a counter: Crit chance (possible counter could be resilience) and obviously Aspd/haste; but since these are usually scarce and situational, they don't really pose a problem.
With the level stat differences, there is also another natural way to counteract stat inflation: I can just raise the creature level beyond level 50, since every level difference will modify hit chance, crit chance and crit damage naturally.