CM regularly tweets heavily sarcastic things in a deadpan way
This is a way of sardonically criticizing the narrative that many agencies "aren't finished" and "need to add more to the report"
He is basically saying in a roundabout way that there is more than enough evidence in the public domain at this time, so it would be ridiculous to delay such an important report to give glowniggers more time to whip up some lies
Tragically, you are a midwit and this very basic premise sailed right over your head