If I am wrong, please show me where in the world this idea has actually worked?
That study compared the result of watching a rom-com with watching a David Lynch movie and their conclusion was that the rom-coms fucked you up more than David Lynch? I totally call Bullshit! on that.
Why? Lynch's films often leave a lot open to the viewer to conclude, allowing people to think for themselves and make their own judgements. Your typical rom-com practically forces an emotional response out of the viewer - usually based on a (noxious?) set of ideals that are hard to live up to. Eraserhead may be scary, but not as much as the idea that your real life isn't as good as the ones in heightened emotional world that is a hollywood rom-com.
It's great to be smart 'cause then you know stuff.