As with many things in audiophilia and the attempt to create a high end system, it's not a simple matter of the realism being there or not, it's a matter of degrees. Literally hundreds of systems and combinations of thousands of components are capable of varying degrees of the characteristics sought to convince the mind that one is hearing "real" performance.
Obviously, it's very difficult to attain an extremely high degree of that realism, and the vast majority of systems fall short of it, which should be expected.