I don't believe CIC will ever reject anyone for not putting their transcripts. This is what their rules state:
Document requirements
To receive program-specific points for education, the applicant must either
provide proof of having completed a Canadian secondary or post-secondary educational program; or
obtain an Educational Credential Assessment (ECA) and provide the ECA reference number in their application, along with proof of the foreign educational credentials for which points are being claimed.
Proof of completed Canadian or foreign educational credentials can include copies of
secondary or post-secondary education documents (certificates, diplomas or degrees); and transcripts for successfully completed secondary or post-secondary studies, if available.
If available is the key word.