Its my understanding that for information under seal, like a deposition with personal information, that at trial only excerpts are likely to be introduced to the record.
Might this be the mechanism for keeping it secret?
I am wondering about the whole Ms. Ranahan statement to FFF though. I thought the ruling was not just "well they didn't ask for it to be sealed this time so we declare it public" (which she seems to be suggesting). I thought it was "you keep asking to seal it, and NO, and STOP ASKING".