Last year, the Patriots and the Titans were fined $350k for violating COVID protocols, the Saints were fined a total of $700k and the Raiders a total of $800k. Other teams were fined, as well, and Payton, Gruden, and Tomlin were also fined. I believe the league was heavy-handed with punishments last year because there was no vaccine and they wanted/needed teams to comply with the guidelines to give them the best chance of playing a full season.
I can't think of a reasonable argument for why the Packers got off lighter than teams did a year ago. There's a vaccine now, so an unvaccinated player like Rodgers violating the protocols is less likely to infect, say, 10 other teammates. The fact remains though, that he was violating the guidelines and Green Bay's approach seemed to be to ignore it and hope Rodgers never tested positive. The minimum penalty for Green Bay should have been $500k and a late round pick.