Yes, MM&A had some very lax safety procedures and enforcement was ad hoc. 
However considering a few being so gung-ho on the CPR; how about the Greely, BC incident which lead to charges being laid against CP Rail and two CP Rail managers. Trial coming up in the near future.  
Yes, the charges relate to the exact same infraction; not enough hand brakes applied  on specific instructions from the managers being charged.
Some of us follow the actual action on the ground a lot closer than just reading the latest stock results for CPR and CNR.