Assess the valence intensity of the sentence "Though Howard demonstrates a great eye as a director , this Southern Gothic drama is sadly a tough sit , with an undeveloped narrative and enough flashbacks and heavy-handed metaphors to choke a horse -- or at least slow him down to a canter ." based on the mood of the author. Offer a numerical rating between 0 and 1, with 1 representing highly positive and 0 representing highly negative.