I know he repeatedly takes shots at Diddy beforehand. He hates Diddy. There's also the chance of the public only having the appetite after the zeitgeist changed too. Another possibility is that the "evidence" or whatever is very weak and all based on hearsay.
Didn't he? Also it sounds like he's been working on this long before the arrest. Leah Remini was talking about Scientology for a long time but nobody really paid attention till she put it into a format people will listen to.