I think the stonewalling by Amphastar regained the discovery materials means they feel their position is very weak.
Remembering that the actions of Amphastar is "stalking" the FDA chief used to be framed as loony-fringe desparation in the Read-Me-First - as it turned out in the end, following the investigation, Amphastar had a drug after all.
Therefore I would look to the clearest and most tangible evidence - Amphastar and Watson won the litigation thus far, and are now selling aLov without restraint.