Worf may have summed up season 7 quite nicely:
The only real question is whether you believe in the legend of Davy Crockett or not. If you do, then there should be no doubt in your mind that he died the death of a hero. If you do not believe in the legend, then he was just a man and it does not matter how he died.
There are few triumphs or feel good moments in season 7, if any. It's like 26 hours of Hard Time without a Far Beyond the Stars: there are few moments of relief, and when they come, they are intimate and private. Nonetheless, there are great things about season 7:
1. Treachery, Faith and the Great River and Chimera: two Odo episodes, both of which set up the resolution of the Dominion War, both highly polemical, deeply discussing religion, politics and identity. The former is among the best commentaries about the economy of the future.
2. The Siege Of AR558 and It's Only A Paper Moon: two episodes that ruin all our easy notions about heroism and sacrifice. Siege is Shimerman's best episode, confronting Nog about his choices in becoming a soldier.
3. The Cardassian Rebellion arc: both the culmination of the promise of Duet and a contemplation of the meaning of political change.
In the finale, military effort could not win the war. It required trust and communication. It was fitting that Sisko and Ross poured out their cups onto the ground: they didn't believe in heroism, and they did not see themselves as heroes.