I understand why people are thinking this. But tickets prices dropping would be the result of tickets being on the market that otherwise wouldn’t be there. But there are a fixed amount of seats in the park. And every seat is for sale. So it doesn’t matter if that ticket is being sold by a season ticket holder on Stubhub or by the Nationals on their website or on Stubhub. If the Nats hadn’t sold those tickets to more casual fans in the form of season plans, they wouldn’t have kept them off the market, they would have sold them.
And I would argue that a ticket is less likely to make it on the market if it’s owned by a season plan holder than it is if it’s held by the Nationals. A plan holder may decide to go, or give it to a friend, or thinks it’s a pain to list it on stub hub that day. The Nationals are guaranteed to try to sell it.
I’d suspect that the team is more sophisticated than just selling all open seats in the market place for whatever they will get- if nothing else, how far below face they want to go before they worry about impacting season ticket and multi game purchases is something that a broker or season ticket holder trying to just get anything doesn’t have to take into consideration
