The problem with two-channel audio is that both the recording's direct sound and ambience are projected from a plane between the speakers.
All sound appears to come from the same distance as the loudspeakers.
There is no sense of being enveloped by the sound. This is highly artificial because in a live venue, reflections arrive with a range of time delays and with a specific tonal balance. To enjoy a similar sensation in the home, the proper soundfield must be recreated at the listener's ears. Surround sound technologies are quite powerful in reproducing a feel for the original acoustic because they literally surround the listener with front and rear speakers. Reflections convey both distance and spatiality information to the auditory system.