Well if a person can be damaged from just one pill, I think a study like this should be kept in mind for those that dont recover. This is evidence of adverse effects during and after the drug.
You only have so much you can look at at this point.
You could also make the argument maybe as your saying that PFS has less to do with the drug itself and more the person.
I have seen countless studies on Accutane that dont remain true when it comes to long term side effects.
Some have to though. There has to be some evidence.
Im also the one that said lets just throw out all the drugs, start from scratch and see what we have in common. Maybe we’ll go farther. Then we will backtrack to the drug and see why it had a negative effect based on our predisposition.