From what I can tell, using divine shot and fiery form, both, when you add the tag that lets you share your buffs with someone else, it doesn't actually share them with the whole group. First, you no longer get the buff (or the animation), it only buffs one person in the party, not all of them, no matter how close they are to you when it goes off. 

We need to either fix the help file or the code, thx!

K.