For example, if there are multiple "Submit" buttons on a screen, the Name for each must be unique
This seems questionable. If there are "edit" buttons beside each element in a list of elements, must they all have different names, or can their function be inferred from context? I don't think WCAG requires this.
A web page that has multiple form controls (e.g. buttons) with the same visual label must include unique identifiers that describe their unique purpose.
This seems questionable. If there are "Add" buttons beside each element in a list of elements, must they all have different names, or can their function be inferred from context? I don't think WCAG requires this.