Maybe hitrating is getting removed from game? Hunters need a 295.11 HR vs raid bosses, and 163.95 HR vs lvl 80 players. PVP gear has absolutly 0 hitrating at the Deadly gladiator set, while in TBC u could reach the cap by having the full set. Dont know why they removed it on this seasons set really.
Also i think its pretty hard to cap hitrating with pve gears, unless u sacrifice alot of crit/haste for it. Hitrating is just another RNG when its not capped, and i though Blizzard didnt like that anymore?