This information was probably redacted. On the page that you see "Assignment" and "Due Date", do you see section numbers like s(13).1 or something like that anywhere on the page? Usually, they are printed in the top/bottom corners of the page.
IRCC is well-known to redact too much information thereby making the notes useless. For my PR application, I received enough information in my GCMS notes that enabled meaningful analysis. But looks like that isn't the case for citizenship applications.
I've heard people saying that if you request the same notes from CBSA, you'll get a less redacted version but the catch is that CBSA doesn't provide a response online. They will either print the report and send it to you OR they'll add the PDF file to a CD (yes, you read it right and no, I'm not drunk) and mail it to you (A government organization from one of the most developed countries in the world resorting to the USE OF CDs in 2021 SURPRISES ME!). In addition to that, you'll (from what people are saying) get notes from CBSA in a timely manner (30 days) rather than having to wait beyond the stipulated time without an explanation or a bogus extension request which, unfortunately, is common with IRCC.
Note : I have only heard people say this and I have not tried this myself so I can't attest as to how true this is. I intend to apply notes at a later date from CBSA and see if there is any truth to this claim. I'll be better off getting notes in the paper format and scanning it rather than getting a CD because (surprise-surprise), I don't have a CD drive. To be fair, I'm very happy that they don't still use the 1.44 MB floppy disks to send GCMS notes.