/cast [help,target=targettarget]Barkskin; [help,target=targettarget] Healing Touch

It will never cast Healing touch. First, the IF-statements are exactly the same, which will make the 2nd statement fail if the 1st did. Secondly, the macro will never be able to cast Healing Touch since when Barkskin is on cooldown it will say "Spell is not ready" and the macro will stop. It doesn't automatically go to the next spell in the chain.

Blizzard have been smart enough to remove all the features in which when you target a special person a special spell will be cast. I believe the only way to make sure the correct character cast barkskin is to either use modifiers or a button for each character.