[quote name='computingwarren']I don't see how anybody says it's short. I just beat it a little while ago after a month. If you're a true fan, you'll find every way possible to kill somebody.[/QUOTE]
Generally game length discussions are based on a single play through. Almost every game can be played in a thorough manner to extract the most amount of play time, doesn't mean all players are die hard fans of the franchise.
I only grind a subset of JRPGs. Played and liked the series, not a "true fan" of hitman, in your own words. I don't see how this is hard to understand for you.