Roster says that Zapf was 2017 Pennsylvania state champion at 106 pounds - not sure 149 is tough cut for him.
Ivies in many sports use grey shirts like PG years or other ways - nothing unique about Cornell doing it other than maybe they have had more guys we noticed since they have been in the top 10 of wrestling. Takes a commitment to delay your life the extra year and not all wrestlers or other college athletes will make that choice. Maybe NIL will make it more common? I'm fine with it at all schools and admire the commitment.