So let's compare accident rates between 705 (airline) operators (that use written, mechanical and or electronic checklists for all facets of their operations) and all the other operators in Canada....
Checklists are one of the reasons for their safe operations.
"Hey, I smoked 6 packs a day and I've never been sick...I guess that proves that the connection between smoking and lung cancer is crap..."
Transportation Safety Board of Canada - Statistical Summary - Aviation Occurrences 2012