I don't understand the dust-up about PP.
Thiomolybdate compounds are very promiscuous, and they will scavenge many divalent cations, just with differing affinities. Therefore, this concept of attempting to modulate Cu levels using thiomolybdate is really hit or miss... it's a terribly blunt and nonspecific tool for the purpose proposed.
Secondly, the data for Cu / Alzheimer's are the hallmark of hypothesis generating work. In other words, seeing differing Cu levels among sick patients doesn't address the question of whether the Cu level is simply correlative, or, more importantly, if it is causative. It looks to me like PP is depending on the public not being able to discern the difference.
No more on this one from me. Companies that largely reformulate off-patent compounds aren't generally trustworthy or credible imo. I really think this looks like a vehicle for shareholders / executives to milk a paycheck.