Found one more:It clearly mentions no need to give biometrics:
Note: There is a temporary public policy exemption for in-Canada applicants. More specifically, foreign nationals who are eligible to apply from within Canada would normally provide their biometrics as part of an application or request for
However, since there is currently no biometric service delivery network within Canada, these applicants are exempt from the biometrics requirement until such time as the public policy is lifted. Applicants who apply from within Canada, but whose applications are not eligible to be processed from within Canada, are not covered under this public policy exemption. Those applicants are required to leave Canada in order to submit their biometrics as part of their application.
- a temporary resident visa (TRV)
- a work permit or study permit
- a temporary resident permit
- permanent residence
If you are applying as a member of the family class and are legally in Canada when you apply, you are currently exempt from giving biometrics. Your accompanying overseas dependents may need to give their biometrics.