It certainly doesn't make you a Cat Girl Murderer. Although, a longer Weapon does let you strike at a longer range, it does nothing to actually prevent an opponent from closing in on you if that is what they wish to do, at which point you have to either step back or fight at a disadvantage (or such is one theory pertaining to the Gladius).
One could seek to model that by making closing to 2.5' provoke an Attack of Opportunity, but I think that would make this a somewhat redundant rule; a Feat that negated such an attack initially sounded appealing to me, but I eventually rejected it because there are too many Feats and a 'Readied Action' already allows much the same thing.