That seems a weak excuse. Black and white was iconic when Technicolor came out in the mid-1930s and when Kodachrome came out in the 1950s, but I'm sure you are in favour of Jackson shooting in colour. Silent was iconic in 1928 when sound came out, but I'm sure you are also in favour of him shooting with audio; for that matter, mono, and then stereo, was iconic when DD 5.1 came out in the early 1990s, but I'm sure you wouldn't want to see The Hobbit with one single speaker (or two) at the front of the theatre. And on and on. Whenever a new form comes out in cinema people protest it, because they don't like stuff they aren't used to--lots of people hated sound and then colour, felt it was robbing cinema of its art. To me it's exciting when filmmakers innovate and experiment and show us things in ways we've never seen (or heard) them before. That was, after all, one of the main draws of Star Wars itself.
Personally, I like 3D, I don't have a huge problem with digital these days as long as it is done right, and I'm all for the idea of shooting 48 FPS. In 30 years from now, I am fairly confident this will be how most major motion pictures are shot, as costs come down and computing speeds increase. It's been the trajectory we have been on since the early 1990s. Even consumer camera will probably be like that, and we'll look back at those blurry, flat films from decades earlier, just like people in the 1960s looked back at those black and white silent films.