Personally I like the changes. I have only been playing off and on for a couple of years and am a lvl 60 adv, 71 craft Dragon. I understand the irritation factor in having a mob suddenly appear and cause mayhem but that's what keeps things interesting. Nothing gets boring faster than predictable mobs that always spawn at point x on the map. I like the fact that there are area spawns and mobs can pop in anywhere in the area(s) at random. There were other tweaks put in with the last patch to spawn rates. I've been doing a lot of hunting in the northern dead lands and was quite surprised when my favorite frost blight area was suddenly an ice blight area. Yes, I collected a couple of death points but it made the grind to lvl 60 fun and interesting.
I understand the crafting issues but think that this lends itself well to the overall game story and play. What enemy sits on it's laurels and does nothing at all? There may not be major things happen with the WA but smaller movements always precede a bigger offensive.
Anyway just my 2 cent opinion.