Offline
The saints go out of their way to make it easy to sell your tickets. Ticket manager allows you to list on seat geek and nfl with a click of a button. They are not in anyway concerned with the selling of tickets by season ticket holders. Nor should they be IMO. If they specifically state “you must attend games” at the outset that’s a different story.
The NFL collects money on the exchange, I'm sure. So it's as if they sell the ticket twice. I'm sure they like the secondary market.