D and F, Yes its true that stop-go/ balanced field distances are calculated without using reverse, but to fly in Canada in the winter without reverse is about as dumb as disconecting the ABS on a new car or driving all year on summer tires {or tyres, if a Brit} No, its not Winter here right now but this doesnt change the point that with reverse, instead of residual thrust pushing, the outcome would most likely have been a non event, add to no reverse the third world aspects of CYOW {no TDZ lights, no C/L lights, no Catt 2 or 3, drops at the end of two runways, no overun protection poor rubber removal from Rw 25/07} we are headed for a major loss of life here given our climate, its a pity the media and local politicians dont seem to understand this . Our airports policy in Canada is totally flawed, the decline I observe on a weekly basis with reductions of basic services and closure of strips will, in time result in only major centres having reliable, safe air service, its time to re visit the whole privitization mess and stop building supermarkets on active airports, along with the odd gas stations at the end of runways or excursions such as this will result in headlines for sure!