Face Hunter and Priest have both been very popular and rather successful from about rank 10 and down. Rank 10 to Legend don’t see very much success from either deck.
The reason we chose not to make changes to Priest or Hunter in this patch was not because players at those ranks don’t matter, it’s because we generally see a trickle down effect on the meta that starts in Legend and moves down to rank 17-18. We’d expect the population of both those decks to decrease as players experiment with new decks.
Face Hunter is generally popular at lower ranks because it’s a fairly low cost deck. RIght now it’s weak to a lot of the Shaman, Rogue, and Warlock strategies out there and I imagine that will still be true after the nerfs to those decks. If Face Hunter still continues to be super high population after after 16.2 has been out for a bit it’s likely we would address that deck in some way that makes for a more varied experience.
Edit: I flubbed the matchup data, I was referring to Rezz Priest win rates when mentioning its matchups with Rogue, Shaman, and Warlock. Would still expect the population of Hunter to go down as decks like Pirate Warrior and Galakrond Warrior rise up in population at lower ranks.