Explain how this deck is bad in the tavern brawl.

http://i.imgur.com/EteEDMI.png

It has good taunts, the gastropod for 2 mana clears, Dr. 3, and sabretooth + windfury / shambler otk. And other pretty good cards. It got 6k views and -7 votes with 2 comments saying it's terrible and trash. However, I am currently 6-0 with the deck so am I just facing bad decks?