i found that the jade empire series's twist and foreshadowing was critical to understanding what happened, also agreee, post-twist, the story went sideways and off a cliff. prior to that, it worked well.
KOTOR's Act 2 "twist" reveal worked well, from a critical standpoint the animation lets it down in tone and subtlety, but it was intended to be sinister and then compelling and then emotional. The symbolic sequel to KOTOR's story, Revan ? .. Contrived is the best single word to describe that mess of a book.
Bastilla/Carth, well, arguably due to the problem of Jedi sidekicks, it's hard to be the butler and stand out too much unless you're also an outsider/rebel, or the love interest, or the comic relief and you can have a story as someone besides the sidekick or the valet, always getting doors or picking up the crew from whatever dangerous mission there is. Carth... gets a lot of **** for being the doormat, and the same happens in ME2 with that guy who pops up at the beginning and you never see him again until the end ... what was his name again ? carth taylor ? of jacob, that's the guy.
As for ME3, the problem wasn't the foreshadowing, it was the catalyst. it wasn't revealed, it had no connective branch to the other stories, and the ending becomes stupid.
starchild, makes the reapers much less threatening, but also weaker as a motive evil or paragon of justice or righteousness, not only because it's a child, posing a question of humanity while killing millions of people, but it's not really important, no matter what happens, shepard takes the bait.
after the starchild, **** happens that makes no sense. if chuck norris and his wife turn up in the anniversary extended cut, it would still be in context at this point, holding a baby reaper in their arms, announcing a thousand years of darkness, whatever. it doesn't explain the reaper plot, because it's a stupid premise that they'd cull hundreds of worlds hunting down the knowledge of synthetics, because they are synthetics.
in retrospect, the leviathans make the problem much worse, not just for their millenial inaction, but their existence turns the crucible and mass relays into a billion year old playpen, and not a pasture for slaughter.
i get that the ME system was a prison and a stalking horse for the reapers to use, but it would have been much easier for the reapers to install themselves into the civilisations they monitored, modified traits using collectors, nuked pre-civilised systems from orbit. the odds of a species of kangaroos building starships after being hit by world-ending rocks, are low.
without a creator race as contrast, the reaper and catalyst seem puritanically evil and isolated from society, the arbiters of fate as they decree.
with a living creator race, it seems as if the catalyst is a deranged mistaken cult that wants to destroy itself, but does so by shooting the families of everyone around them first as some kind of genocidal cry for help.
it makes no sense to attribute human motivation to alien machines, but the story chooses to make the catalyst a child who uses shepard to decide if they can kill all synthetic life.
you can't have a red and blue morality dilemma (alien ethics and morality), and have a human avatar try to explain that they make things better by killing everyone that's not like them. thats not an alien motive, that's a human one. it's religious, ritual, derangement.
so, f it.