We know that it kept private keys and 7 TB of data in total, but that's all we know. I don't remember the feds bragging about logs, can you give me evidence of "absolutely everything"? (Vouchers were pretty reasonably kept in their database)
Why would they brag about something that could jeopardize the investigation, which probably hasn't ended yet? It is obvious that CM did not do what they said they were doing, and for some reason they kept not only the vouchers but also the private keys - and if you ask me how I know this, I already wrote that my funds were swept away from private key which was old more than a year. Therefore, there is no reason not to justifiably suspect that the logs are part of what they got their hands on.