I didn't check the link but why now?
The scam stunt has been pulled eons ago and why does the FBI will involved themselves just right now? It doesn't makes sense, unless this is a show of force on their end and sending a signal that scam projects are being hunted and put to justice and victims will be compensated.
I think because one of Bitconnect's promoters has been arrested and put behind bars already on the time this article was posted so the issue has been resurrected and not to deny that there are indeed a lot of investors who've lost huge amount of money in this scam.