Apparently they've kicked garbage like me out of F to
have plenty of seats available for LH employees:
The upper deck continued to fill up, surprisingly enough mostly with Americans (in my experience most Lufthansa first class passengers are German). There were two other Germans, and everyone else was American, including two Lufthansa employees (which might explain why they assumed I was an employee, since maybe they knew two Lufthansa employees were aboard in first class).