Also, to the point that it wouldn't have been original in 1776 - I know this isn't what you were getting at, but afaic Gone Girl couldn't have been made (or conceived of) before this decade. It's a product of reality TV, social media (and news media), surveillance state, even arguably the financial crisis.
I can see why people don't like it - it's pulpy, it's silly, it's nasty, it's got Ben Affleck in it. Maybe you're "right".
I can only speak for what I saw in it, which I don't think I'm imagining, and for the mastery of technique which I perceive. It's not a bravura dreamscape ala Vertigo, which probably makes that comparison seem even more egregious - it's dreamlike though, albeit in a hyper realist way.
The vertigo comparison was mainly to rebutt the argument that because the plot is silly it must be shit.