though I do respect the general consensus, and would not raise a "stink" if HoTF gets nerf'd or banned, I disagree that it is either broken or unbalanced.
I like the feat, I think it is appropriate.
I've heard the argument that, Avengers only OoE once per encounter. If the striker is only killing one monster per encounter...
the team, isn't working together properly.(insert comment about how teams can work many ways, and the previous statement is far too general.) By focusing on one threat at a time, and taking that damage potential off the board, the party reduces the total damage they take. This also lets the Avenger OoE 2+ times per encounter.
If we are going to nerf HotF, how about this.
Hero of the Faith, Prerequisite Wis 15, not a Ranger.