You are way off base. I suggest taking a look at the applicable AES papers. This beats not just regular stereo, but any standard multi-speaker setup I've heard. Regular stereo simply sucks, otherwise we wouldn't have surround speaker systems in the first place! People keep talking about how this amplifier or speaker images, when in the end that's nothing compared to the difference recording method and playback speaker setup makes. All multiple speaker systems suffer from crosstalk, so the sound that arrives at the listener cannot possibly be what arrived in the recording microphones in the dummy head (what you say "it was originally intended to be"), and there are two ways to eliminate this, either a soundproof physical barrier between speakers, or a digital processing one. Only the latter is practical.
As for the stereo dipole, it's just a way to simplify the calculations and increase the size of the sweet spot, by putting the speakers close together.