No it just explains how resillience work and i cant say i ever heard of any site that shows average stats or something like that.

If your asking for the average resillience in bgs it varies from 0-1000 but since the cheap parts bring you to 300 resillience i would say that majority is from 300-600. Most people dont do bgs after they collected all theyr honor parts.

There are also classes that dont need resillience that much to survive and mix in pve gear for great success. Paladins and Dks mix in pve due to already having great survivability, cloth classes on the other hand ususaly go for pure pvp gear.