I wish they would have made the effect spell haste or Burning Affliction 4. A healing focus is pretty lame for a shaman, since you have to spend a bunch of AA to make Tnarg's Mending worthwhile.
There was a time when I would have agreed with you Jsand, but by the time you get to the point where you'd be seeing elemental drops your going to be doing a lot less DoT'ing and a lot more healing. This is one of the focus effects I'm most looking forward to getting.