Airbus Submission on AA587 (for comparison)
LINK (.89mb pdf file)
Some very dubious contentions therein.
IMHO
All PIO events have a trigger and can be potentially destructive. That's why (in the most part) they are sought out in the design and test phase and eliminated from the design (or compensated out). That's why yaw dampers were invented in the first place (for instance).
Blaming a pilot for an APC development that is built into the airplane design is like blaming the man for an unwanted pregnancy.
And blaming that man for the woman ultimately conceiving is like saying that he was responsible for her deciding not to use contraception or later NOT to have her pregnancy terminated.
*APC = aircraft-pilot coupling
Edited to correct LINK