On close scrutiny
You have a good point on the chemicals not being included in this, but this document is in fact the source quoted by many news reports (just one example) as the proof that we shipped "deadly biologicals" to Iraq.
If these shipments were blown out of proportion to this extent, you have to admit it may cast some doubt on the rest.
In any case, our relationship with Iraq years ago isn't relevant now, and right now he isn't getting his weapons from us. Years ago we were allied with the Soviet Union and bombing the hell out of Germany and Japan.
Things change.