After thinking it over, I'm ok with Medlock and his performance tonight. I wasn't expecting him to hit the 56 yarder, he sent his lone <50 yard field goal straight down the middle of the uprights, and he just happened to hook his 50 yard kick. He probably spooked himself a bit on the potential game winner, no doubt, but the Pittsburgh field is also NOTORIOUSLY tough for even veteran kickers (hell, you could see how the field was getting torn up just by players who going low to the field for catches). It's just very, very difficult to hit 50+ yard field goals in Heinz Field.
In fact, if Medlock had hit that 50 yarder, he would have tied the RECORD long by an NFL kicker!
Unlike Three Rivers, the playing surface at Heinz Field is natural grass. The field features underground heating to help the grass survive Pittsburgh's winter climate. As a result, the field is known for its difficult kicking surface; the only field goal over 50 yards was 51 yards, kicked by Pat McAfee of the West Virginia Mountaineers during the Backyard Brawl on November 16, 2006. The NFL record for kicking is just 50 yards, set by Jeff Reed in the 2006 season. In 2006, the NFL Players Association conducted a poll in which the grass at Heinz was selected as the worst grass field in the league.
So Medlock will be fine, just fine.