Stat Cap

I have been aware for some time that stats hard cap at 10, but I was just giving the little black rule book a read through, and on page 2 it mentions that both Wounds and Attacks are not restricted by this upper bound. Running some math through my head, that means a Chaos Lord on a Stead of Slaanesh, a Daemon Weapon, two weapon fighting, on the charge would have the potential to hit 12 attacks. Is this something new to 6th that I just didn't catch before, or was it like this in 5th too? I don't have my old rule book on hand at the moment. I am also curious as to what this means for things like the Doom...

I dont think it matters as those stats (A & W) arn't used for anything but record keeping. the rest of the stats affect rolls of some kind

Last chaos codex a khorne lord could get 15(or was it more?) attacks. Doom is capped in the codex at 10 wounds (oh if it wasn't...)

A 20 wound Doom is a scary concept...