I think you are just a little confused on the concept of stereo miking. Stereo, in the usual scenario, is meant to record the sound stage accurately, so that when replayed, your brain, with your eyes closed can make decisions on the location of the instrument in a space. A guitar is an instrument that has width. A piano or harp even more, and something like a trumpet hardly has anything. Your technique, produces a recording unlike reality - the two microphones favour areas of the guitar with very different sounds, so you hear the guitar tone, with one capturing the sound of the finger board and the other the sound of the right hand plucking and slapping the rings. When panned hard left and right you have a very different guitar sound - which you either like, as maybe an effect, or hate.
It's not really stereo, but two channel. There is width, but the technique makes the guitar pretty huge. Two mics on a bracket with their elements at right angles to each other, very close, produces a popular 'stereo' sound, but as you correctly say, they are close, so the separation between the left and right will be gentle. One still favours the fingers, while the other will favour right hand and the sound hole - making that channel darker, mellower, boomier (insert correct word). Nothing wrong with your technique if you want the slight weirdness that seems to go with the style of playing. Distance impacts on direct sound vs room sound - again, a choice.
There is no 'correct' solution - just the one that works for you.