The throw to Hartline was an outstanding pass. It was right in between two defenders and placed perfectly. The TD to Wallace wasn't anything special, but that is 1 pass. Tannehill missed a few throws, but that doesn't mean he wasn't good. The game could have been much different before halftime with Tannehill playing the exact same game had the kicker not missed a makeable FG, or if our RBs could gain 1 yard on 3rd and 4th down.
He didn't play great, but saying he didn't play good is not accurate.