Looking at the pre-beta times, I mostly saw quite bland characteristics in the NPC stats, especially looking at human NPCs (an effect which mostly occurs at WS & BS).
They had a wider range in the beta which I really liked, having also values up to the 60ies sometimes, which created more colorful NPCs in my oppinion.
Looking at e.g. two OW stats before (from the newest Enemies of the Imperium):
> Severan Dominate Soldier: having WS & BS around 35
--> Really ? Guys - this guy is a SOLDIER; an AVERAGE JOE should have such stats...not a soldier.
> Ork Nob having WS 45
--> this guy lives for waaagh and survived long enbough there to become a nob...45 seems too...cute...for that.
It is rare to find WS/BS values that are not between 25 and 45 - thats totally boring.
A range between 20 and 80 is much more appealing imo.
And please - stop that "Unnatural characteristic" nonsense and the pseudo "D% has to stop at a value of 100" attitude.
If a NPC is Unnatural somewhere - just give it higher stats there.
The beta did that right and this should be something which should be kept.