I think it's a pretty spot in analogy. KotOR is a big collection of Star Wars tropes assembled into video game format. The Revan twist is a great example of this. It is so good because it wouldn't be nearly as effective in a movie. It really benefits from the way video games, specifically RPGs, are setup, and actually ends up saying something about how hollow your normal Bioware RPG protagonist is. The Vader reveal wouldn't work in the same way in a game as it does on film. KotOR is the video game version of Star Wars.
KotOR 2 does exactly what TLJ does, and totally overwrites everything that happened in the first one. Your choices? Really didn't matter. Revan just came back and overwrote your players memory, and is their own character now. Their might be a couple of differences, but the end result is the same. The major difference is that KotOR 2 actually reinvents what happened in the previous installment in a more interesting way. I actually care about what KotOR 2 has to say. It isn't trying to be edgy and deceptive for shock value and cheap political points. It actually has something new and unique to say, that isn't a super disneyfied moral. It casts KotOR in a new light, but that just makes it more interesting. TLJ on the other hand makes TFA way less interesting, and doesn't add anything new to it. It honestly just makes it worse, when you know that the questions that are brought up don't have interesting answers.