Lightsabers just aren't all that special. You watch the movies, you can see lightsabers cutting through metal pylons like butter, slicing open doors, killing people in one hit, or severing limbs. In this game, however, a lightsaber is little more than just another sword that has special lighting effects and sound. About the only thing it can do that the swords can't do is block blaster shots thanks to the automatic Jedi Defense feat. Other than that, be prepared to whack giant dogs repeatedly with your lightsaber until they die. Watch all the glory of the lightsaber as it's blocked by the crude gaffi sticks created by the primitive Sand People or the swords that the Wookiees can make in their forest-top homes.
In fact, you really have to wonder why the developers didn't choose to go another route entirely with the lightsabers given that lethal combat with two Jedi is fairly rare in the movies. There's only been two unwilling killings during lightsaber combat in all five movies, and that was in Episode 1.
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