In my opinion a lot of these points made are really good and well argumented and I just saw the movie and I loved it for what it was. It was one of the most epic, deeply human and meanngful movies that touch our existance that have been released in a long time. Hyped as "the next great space odyssey after 2001" it absolutely lived up to the hype. However it was in a funny dichotomy between being a Inception-type blockbuster and a visually artful bow to your fans. It was too close to both. On one hand many people were waiting for spectacular visuals and metaphysics while others wanted a nice clean blockbuster. But it wasnt either. It was both in a way and therefor it wasnt what it could have been.
But just as 2001 it will be rewatched and dissected and analyzed for the ideas it shares and the visionary style used. So I am saying it will evolve and grow into a piece of history nobody can deny. And as every great art it will become timeless through its very particular use of these new concepts.