The difference in strength and speed between a freshman and senior is enormous. Freshmen in the upper weights that survive and compete some have had a great year. Freshmen in the middle weights who compete and are above average have had a great year. Freshmen in the lower weights who finish at the top of the pile have had a great year.

Of course "great" is in the eye of the beholder. But there is a reason you do not see 4x state champs in the upper weights. Also, there are a lot of freshmen who do well who are really disguised sophomores. They are older, and by virtue of age could be starting their sophomore year when they start their freshman year of high school.
Winning a state championship, ever, is difficult. But, winning it 3x in the upper weights is perhaps the bigger accomplishment.