If people actually liked the prequels and the version of Obi-Wan presented in the prequels, then Vader would have been in the same boat in Episode IV-VI.I don't think so. Kylo has the teetering on light/dark moment with Skele-Vader. The act perforationg Han completed turned him. He is beyond saving at this point. Killing Han feels like the unforgivable act.