The FBI can't release or leak information on select celebrities or politicians possible illegal activities or actions with now-disgraced billionaire sexual predators or criminals if their not 100% sure their interactions weren't just platonic or strictly business-related or prove they ever occured. The FBI isn't the National Enquirer that it should engage in gossip-mongering.
Maybe their are long-standing rumors, hearsay and contradictory information on certain celebrities dealing with Epstein that infer some sneeky sheet went on but nothing definitive and when you can't categorically prove any criminal wrongdoing--even if there was at one point---it still doesn't convict anyone except in the court of public opinion and some powerful celebrities, politicians on both sides were very adept over 7 years ago distancing themselves from whatever previous ties they once had to Epstein. Even if a good portion of the American public privately mumbled amongst themselves that they were lying their arses off, Ozzy and gave distinct impressions of being frightfully concerned a few of them just might end up being tied back to him in a negative light.