One shortcoming of that article is that it might lead the uninitiated to conclude there's only XY and MS. There are a number of other techniques.
But, yes, MS is the most flexible one, since you can still process the recording after the fact. In that way it's unique. It is, however, not at all suited for close miking.
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In a time of deceit telling the truth is a revolutionary act.
George Orwell
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