Oh neat, Brann can gain a mini Bloodlust in S2

From Blizzard themselves:

Now some specs that can sustain themselves will likely try tank Brann and succeed but ultimately he was made for healers since DPS Brann can’t hold aggro.

Fwiw, doing DPS as a healer isn’t terrible, they can definitely clear trash when played correct. Archon Holy Priest is an AoE powerhouse for example.