I have been following this shimmering thread that expands and contracts with time, with interest. There seems to be an almost obdurate unwillingness to understand the text of the EAD and of the Airbus concept of design and operation of aircraft. I have no problem with either, but then I operate Airbus aircraft and have done so for many years, and am familiar with the way they do things. It's not difficult, nor is it inherently dangerous, it is comprehensible and is designed to be so worldwide.