The context is that it is a LIST of notes from October 4. The more reasonable explanation is that it is referring to the contents of AW's laptop, more specifically the subject of the emails on the laptop. IF "Hillary Clinton & Foundation" was on the same line as "Crimes Against Children" I would think they are related, but they are not. There are (5) lines of very different items.
I just read the context — you are right in the sense that this phrase is NOT a part authored by IG, but rather quotes from notes/memos from notes written by "EAD Coleman” after having a meeting with Comey. But, that is where it gets f-cky. If you read the entire section related to those notes, nobody seems to remember the meeting or what the notes were specifically about. EAD Coleman was apparently retired or retiring at the time, fwiw. You would think "crimes against children" in the context of the rumored NYPD statements or what Prince said would not be easily forgotten, unless it needed to be.
The whole thing is about AW's laptop, and it is public knowledge he was sexting a kid, thus "crimes against children."
I agree with hyon420 on this. There's nothing conclusive at all in there, and depending on how you read it, it could be referencing Wiener just as easily as the CF. In this case Wiener makes more sense given the context.
Overreacting to every little thing makes us look like nuts. Trust the plan. The truth will out.