That's a bad examplle. All those guys(I dunno about he flyweights) were All-American(Rashad missed it by one match, in a very stacked year, and beat Gregg Jones, a college wrestling GOAT.)
Different years have different talent levels, and the tournament is only a snapshot that isn't necessarily indicative of your overall year.
Chael was unranked in 1998. He became an All-American, by going 3-2 in the tournament. \
In 1999, he was ranked, again went 3-2, but missed All-American by one match.
Redshirted in 2000, came back in 2001. He was ranked highly, top 5 during the year. Was #6 seed, but lost by a point in the opening match. Chael was overall a better wrestler in 2001 than 1998, but was an All-American in 1998.
It's not so simple that Phil Davis was #1, Weidman was #3, therefore Davis>Weidman.
Anyway, DC was 15-0, won the SF GP, and his wrestling served him well during his career. Now all of a sudden he loses one match, and "Olympic wrestling is irrelevant in this sport! It means NOTHING!"