Why publish only part of your findings?

Digital Chosunilbo: Korea: PPA has long been known as a dangerous ingredient in cold medicines. Products containing PPA have been banned in the U.S. for a number of years.

This story says the Korean FDA at first only published a portion of its earlier report--and pretty much led people to believe that the connection to hemorrhagic stroke (ruptured blood vessel in the brain) wasn't clear. For some reason, they're now publishing the whole report--which states that the connection is very clear. In fact, the latest research indicates PPA is also a factor in causing ischemic stroke, the much more common type (blockage of a blood vessel in the brain).

Strange and seemingly unethical behavior. Did they just not want to give up making money from the distribution of those drugs?