SE we don't need to face target to Heal!!

[Nullie]

If you are targeting something, yes you should face to them.

Anything that can't be targeted, then yes. You can face any direction.
Just like dps can't swing their weapons behind them, you need to do the same to person who you are healing.

[Sushi]

I healed more than 5 years in WOW i never had to face the target when I heal. there is no such thing as facing target to heal.
Moreover, PVP won't work if you do that.

it messes with your direction while running