I still need to give this a listen.. but in general I consider sound quality at the recording location, the other qualities of the particular mics used, their polar pattern and how they are setup, all to be more influential than the size of the mic diaphragm.
Rock's comment on it having a "natural "you are there" sound" is something I tend to associate with the portrayal of the ambient content in the recording- the underlying background in which everything happens, the space in which the music is heard to occur, the reverberant room sound and audience reaction sounding "open and 3-dimentional". Much of that impression comes from achieving sufficiently low diffuse-field-correlation between playback channels, which is fancy speak for the ambient sound arriving randomly from all directions not having a clearly-distinct phase-relationship in the resulting recording. That occurs automatically (some argue "artificially", but I say "if it sounds right it is right") when spacing a pair of mics sufficiently far apart.
The advantage I see in using this kind of multiple-mic stereo array is that you can more easily get both that big, naturally immersive, 3d "you are there" sound from the wide-spaced pair, and simultaneously get clear, tight, phase-correlated upfront-sound from the coincident or near-spaced pair. The wide-spaced pair alone might sound very natural and immersive but "distant", while the center pair sounds more clear and upfront but "flatter and less dimensional". Together they are more likely to provide the best of both worlds in the resulting recording.