With Cameron Maybin looking like he was ready, Cody Ross swinging a hot bat and playing great D and so much time, money and promise invested in Hermida, there wasn't room for Hammer unfortunately. His health issues prohibbitted the tem to signing to him to any kind of deal.
However, the Nat's shouldn't necessarily be praised for "stealing him away" because they didn't play him regularly to start the season.
Josh Willingham has been a top 5 hitter this year that would have helped the Marlins make the playoffs. The Nats were certainly stupid for not playing him more especially when they named Austin Kearns as the starter ahead of him. Hermida is a failed prospect. There was more than enough room to give the hammer 500-600 PA.