Having flown off and on into YHZ for the last 18 years, I have never understood why 05 does not have an ILS. I never liked doing the backcourse LOC in low ceilings, and I have experienced downdrafts/windshear coming in there.
Looking at the METARS from last night, a divert would have been a serious consideration.
Incredible luck somehow scuttling onto the runway surface, sans all gears and an engine and half ripped off.
Pure luck.