I would disqualify it just based on the fact that it is very based in American politics and culture at a distinct time period. It also doesn’t really push form in any interesting ways.
It pushes form in one of the most amazing ways of any book. The economy of writing is amazing. It’s a masterclass in how to say more with less - and it’s a long book. A long book full of extremely short passages that somehow feel full of vivid detail. I think it’s a very deliberate style and form to reflect American culture with that way of writing.
It is obviously impossible to say what will stand the test of time, but it is fun to guess! I don't think "pushing the form" is really that important in the long run. It will get you attention in the short run, but who actually remembers in what ways Shakespeare was "pushing the form" back in the day?
Would you disqualify other novels based in the politics and distinct time periods in other countries?