That is misleading. When a clinical trial is designed for non-inferiority, it doesn't say anything about being superior or equal. Just as legally, a defendant is either guilty or not guilty - there is no legal adjudication of being "innocent".
These drugs are not comparable (different stability profiles, different mechanisms of action, etc) and to say they're equal is highly misleading.
>and the absence of the drugs that would have been discovered since then has surely killed many more people than the inadvertent use of harmful drugs ever could have.
There is no evidence that safety regulations have denied us some miracle drug. I don't want the FDA approving drug products that are harmful to the general population. You haven't made a good argument for "the greater good" besides a reference to magainin, a product for topical treatment of foot ulcers. There are thousands of known anti microbial peptides.