Interesting.....
I know nothing about the evidence presented, and I'm sure there was much.
But one wonders if the "CSI effect" was present.
Also, everything has risks and tradeoffs. This is something a little hard for most people to wrap their brains around.
Nothing you ingest has a single positive or negative benefit. Balancing the pros & cons is tricky, assuming you even truly know what they are.
Drug companies face many challenges: the drive for new products as older line lose patent protection, cost & time for large clinical trials, and the possibility of long term effects that cannot be detected with trials....