I totally agree. A year or two ago, I discovered this fact. I realized I had misinterpreted the whole idea of shifting, likely due to well-meaning but misguided teaching from books and internet. I truly think you are on to something here. I hope people with this “darting gaze syndrome” (not to be confused with nystagmus, which I’ve also read about!) will be able to discard this habit when they realize it doesn’t work in most situations. If one can both let their eyes relax and let micro movents occur simultaneously, the vision often improves by a good amount within moments.