8 Reasons Batman V Superman Is The Most Culturally Significant Movie Of 2016
7. Being Notoriously Bad Gave It Longevity
Interestingly, if Batman V Superman had been good, I don't think it would have had the same sticking power.
Compare and contrast to Captain America: Civil War, an infinitely better film no matter what metric you use; there was immense critical praise (it got over treble the Rotten Tomatoes score of BvS), audience joy (skewed a measure it may be, but it's on IMDb's Top 250) and predicted financial success (it's shaping up to be this year's highest grossing film).
And yet a month or two after the release of the Marvel behemoth, everything had calmed down and fans were back to looking towards the next film. This is pretty common nowadays - even The Force Awakens hype dissipated much quicker than any previous Star Wars film - yet Batman V Superman sure had legs in the cultural conversation (if not box office).
The problem with those examples is that, being good, there's a limit to conversation. You can only praise excellent filmmaking so much without alienating others and there's no fun in speculating what might have been when it would have invariably been worse. With Dawn Of Justice there's something fun about going back to the well and having a good old mock.