On the topic of missing key points in the game....
Has anyone played darkside but not kill the Jedi Masters?(TSL) It brings on the only satifactory resolution with Kreia at the rebuilt Jedi enclave on the subject of how/why you cut yourself off from the force.
a) "You were afraid." (lightside)
b) You're berated for being a mindless murderer and are guilted into doing the right thing and save the galaxy. (darkside) So you're a good Sith? In K1 you get to crush the republic.
"Because you had to."
You're still a "good" Sith but the urge to force crush Kreia is slightly reduced.
Never seen anyone mention this outcome so I thought I'd point it out there.