I was confused. I say yes even if I voted "no". The fact Delpo won showed his desire. Novak did not care as much it seems.
He did care a lot. He was so devastated after the match, not to mention his frustration during the match itself. He was almost in tears during his interview, saying this was one of the saddest moments of his career/life. Felt a bit sorry for him, it's tough to come 4th at the Olympics.
I would not be against giving the bronze medal to both men; after the painful semifinal defeats both endured, making them play another match where one goes home emptihanded seems a bit cruel. But I guess that's how sports work.