Yes and no. He was definitely a guy we were excited about, but was a relatively late bloomer who hadn't run into a lot of top competition, but more importantly was caught in a once in a generation heavyweight class. Steveson, Schultz, and Kerk were the higher regarded guys. Parris was the guy who was raw, but had a higher ceiling. He was almost discussed separate to the other guys if that makes sense. Most hawkeye fans saw Cass as a guy who might have a shot his senior year if Gable didn't redshirt and was gone.
If you'll recall the big debate about that group was Cass or Nevills. Nevills was about as expected. Cass exceeded expectations.
Also, age level Pan Ams aren't really competitive. The cubans rarely if ever send guys. Jeremiah Moody also won Jr. Pan Ams and he never came close to making the lineup.