In PvP this is ruinous. That new SS? If you're at 30% you're already far in the red-zone to be locked down and executed. Bad enough that Holydins are prone to spell lock out and chain CC, but let's nerf their prime finisher which composes most of their healing in arenas. I swear, some people got all excited because the Inq uptime changes and the addition of the new Turn Evil but those two "buffs" (I missed the snare from Burden because my SoT ticks would keep people in combat, out of invis', etc,) and Blizz seems to think that justifies nerfing a already subpar PvP healer into the ground.
Edit: How about they cut the cast time of Holy Light by 60% to compensate. *Rolls eyes* Screw us out of our absorb shield and our stronger instant heal? Gee, guess I should reroll MistWeaver or Disc.