"The shame of how much one enjoys Liam Neeson's revenge-based dark comedy is the fact that so many people were distracted by his promotional tour, they may just miss his best film in decades. In all fairness though, most of the people who protested Neeson's ill-timed decision to tell the truth about his growth as a person are the kinds of folks who would have been offended by the film's humor anyway."
The fact that there is little mystery to the film shouldn't matter if character and feeling are what you are seeking. The reveal at the end is less of a surprise than the action of the climax. And in typical Sheridan fashion the climax is never the conclusion of the story. Time must be taken to recover. That is time where most people live in a world without mercy.