I could be wrong, but from what I understand (and to be fair, I didn’t really read the other topic, where they discuss this stuff), this is just the tip of the iceberg. They chose the ones that needed fixing more than others, and will be addressing everything else as they go along. So it isn’t that they chose to heavily modify some - it’s just those are the ones that got hit first.
I think http://www.grimdawn.com/forums/showthread.php?t=37644 is where you ought to go if you’re leaning more towards process and design mentality, and discussion. 