When GW took it out it was one of the big things that experienced gamers in Aus hated the most as it meant a lot of the skill in spacing was taken out.
I agree with Llew. If I wanted to sit around eye-balling measurements I'd be a carpenter. Random charges is the best change to WH 8th IMO, and it's a shame KoW doesn't have it.
Another thing WH does better than KoW is the new movement phase rules. KoW basically uses the WH 6th/7th movement rules for changing direction and terrain and TBH it's doesn't make for an interesting game.