Maybe because it's not nearly as big of a problem as block healing or free stats, and they recognize that the better solution is to make staying mortal or going WW more appealing. Which they don't have a workable idea for yet.
They rly need to nerf undeath passive imo, its wayyyyy too strong and I have vampire and non-vampire characters and the difference is extreme in pvp.
Was in a similar situation. Refused to go vamp since console release but finally tried it just this past year and wow what a difference in staying alive. Explains why execute skills is almost useless against it and why getting kills on good players is so difficult, especially with high movement speed caked in.
I just can't understand WHY they refuse to adjust it. There's overwhelming agreement among the player base and Vamp should be more of an RP choice than a hardline requirement for high level PvP. What gives?