Yes, the scene with Lex and Lana, how many times have we seen that kind of scene before? We all knew she wasn't going to shoot Lex. Maybe SV missed a big opportunity to really seize the moment, and have Lana pull the trigger, and Lex falling down, she runs away, but Lex isn't dead yet and gets the medical attention needed to survive. At least that has some drama to it (Yes, I know it's also been done, but not as much).
In my experience, if you are going to shoot someone, you don't point the gun at them and talk! You shoot them!