Not sure. Maybe next time that note will not be redacted anymore. There might be something useful there. Without previous notes, I would not know about being referred to L2, or needing to be reviewed by PM03.
Also, some people think that ordering GCMS notes can help the application processing to start moving. I guess it is free anyway, so why not try it along with all the other means to contact them.
Another thing, if I get a legal consultation at some point or go for mandamus, all of these papers may come handy.
I am getting a feeling that at IRCC things are going from more to less transparent, and the reason for secrecy is not something that's valid, but that IRCC doesn't want their performance to be judged by the public. Could be that I'm just annoyed because my application had zero progress for 14 months so far, so I see more ill will in this situation than there really is. It's probably just inefficiency or incompetence