Knoth was definitely a later bloomer that the industry didn't warm up to fast enough kind of similar to Misiorowski last season. I truly believe if Knoth was 6'3 or 6'4 that he would have been a locked in first round pick. The only knock on him is his size.
Also for what it is worth, Longenhagen from Fangraphs had Knoth top 30 in his draft rankings. Knoth, Wilken, and Pratt were all in the top 32 I believe.