Especially with the $250 in fees for buying a 25 cent ticket.
The United don't have an instant transfer option that I'm aware of, so you have to pay a FedEx fee in addition to the 10% Stubhub fee. The Nats allow electronic transfer for a much more reasonable $5 charge.
So with this new policy the lowest price for one ticket will be $16 and for two will be $22. (The minimum Stubhub fee is $5.) Previously the low had been $11 for one and $12 for two. Of course only a few games had prices this low, very unpopular games (based on date, opponent, and weather) and overhyped games where the resellers took a bath.