Ok, finally found a rule that might apply and support the thought that it looks wrong (poor trade practice):
CEC 12-3022 Entrance of conductors into boxes, cabinets and fittings
(5) Where metal-sheathed conductors enter boxes, cabinets, or fittings, the box connector shall be installed in a manner that will meet the requirements of Section 10 without injury to the conductors and shall be the of a type for use with the cable.
