This. And I have been preaching this for years and it infuriates me here when people will hold it up as good or say the twist works and then bash David Cage when it commits the same sin as heavy rain.
A twist should make logical sense, be hidden and then when revealed alter previous scenes. When you find out she's the killer you should be able to look back and see it, maybe even have it fill in what seemed like a plot hole or lack of information.
High Tension howeverdoes what Heavy Rain did and straight lies to the audience and with no groundwork or logic says "here is a twist, bet you didn't see that coming" and the answer is of course we didn't see it, it's illogical and flys in the face of everything we have watched.
The worst example is giving the "killer" their own look and personality, doing things she couldn't have "like killing the whole family while she is hiding in the closet with someone else" and shares more than one scene with her the killer and victim with all three interacting that all of a sudden becomes moot. Even the argument of unreliable narrator doesn't work when the movie is not just from her view and includes the killers view in areas where they are solitary and seperate from her.
Yeah this one REALLY bugs me and I have never understood how it gets so many people to cape for it.
The reason you stated as to why you dislike that movie's ending is exactly why I hate The Usual Suspects, lol. I just couldn't believe how it gets so many people swooning over it.
I hate it when a movie cheats its audience and pretend that it's clever by doing so when it's anything but.