I would just let it go...
This is a work situation. And in work, as in life, you win some and you lose some. (sorry for the cliche) but people need to be mature enough to handle their own disappointment.
I'm a firm believer in workplace boundaries anyway. These people are co-workers, not buddies. If they get spiteful or hold a grudge over a perceived slight, then that's their problem, not yours.
But that's just my opinion.