I believe that 2 supplies the feedback for self-correction, and that refutes 1.
Saying that what you practice is martially effective is not the same as being martially effective. As (in general) there are no objective "effectivity tests", what remains is some sort of theoretical reasoning which is performed (if it is performed at all) within a group of like minded, and not very martially savvy people with the unsurprising general agreement and backslapping.
If your experience is different I salute and congratulate you. In this case, could you share the procedures you use to "self-correct"?