While it's a fact that some people can take PPA without adverse effects, the evidence that it's dangerous for others is too significant to ignore.
Manufacturers continue to claim that there's no proof it actually caused stroke and other problems.
The FDA is simply saying it's better to be safe than to be sorry. Despite all this news, the FDA has to go through a legal process to actually ban certain substances. That may take months. In the meantime, you have to take things into your own hands. Talk to your doctor about which products are safe for you.