I think several things are going on here, some more impactful than others:
1) OSU fans have short memories. Remember 3rd and 23 in E Lansing in 2014? JT dropped a pass to Devin Smith that was perfect. If he was trying to put the nose of the ball in the top of a pop bottle, it was that kind of throw. He threw a lot of accurate passes that year, and intermittently since.
2) Difference between then and now? Better protection, route running, and timing.
3) 2015 cost JT some confidence, I suspect. He was the man, then he wasn't, he pressed some, and it took him a lot of games to get back to playing at a high level. Then he makes a mistake off the field that brought one of his best attributes - leadership - into question.
4) This was the youngest team in CFB at the beginning of the year. They are uber talented, but there's no substitute for experience - which they are in the process of getting, and they are still one of the best teams in the country. Football is the ultimate team game, and whether they look like world-beaters or not so hot, what Urban says is true: "The QB is a product of those around him."
5) JT is a college QB, and his running ability and decision making on option plays is what makes him special. I run into a lot of fans who view him through an NFL lens, which negates those attributes, and focuses on what he can't do well or consistently.
6) Who's name is all over the passing and TD records at Ohio State and the B1G all-time TD's? With a year to go! It's best to not take that lightly because the books say this guy is one of the best ever, and we should get down on our knees and thank God for the day Tom Herman urged Urban to bring him here, sight unseen, because we are going to really miss him when he is gone.