Fantom, your posts demonstrate a shocking lack of awareness of what flight testing is all about. Like M. Mouse, I was curious just exactly what you meant by "Dreadful".
How do you think Airbus (and Boeing) come up with things like crosswind/tailwind limitations, or recommendations on how to deal with them? You think it's all done in a simulator?
I suspect the A350 in question is heavily instrumented to determine just what loads are being applied during the crosswind testing, and the resultant data is being thoroughly analyzed to determine what goes in the AFM.