If people are still confused by cards nowadays, after what? Six months?, then it's their fault. There is absolutely no reason to macro cards and raise awareness. People should be aware of any buffs/debuffs they have on at all times. And the AST ones are hard to miss.

I commend you for your effort, but I strongly advise people to NOT do this. People already believe that healers should babysit them enough as it is, and there's no need to add more fuel to the flame.