Good planning would have been assuming the worst and building a new venue at much higher elevations north of Cypress. Calgary, with the provincial government, built a completely new alpine venue at what was named Kananakis at high enough elevation to ensure that the conditions would be cold enough. Yes they too had trouble at Canada Olympic Park but nothing compared to the Cypress Bowl fiasco. Vanoc's senior management lacked experience in construction of major facilities and operating them also.
Let's see the Vanoc mangement publish actual Cypress Bowl's winter conditions for every winter since Vancouver was awarded the games, my guess is that they will find an excuse for doing so.

Saying that this is the warmest winter or month in 100 + years is just a little bit disingenuous. Warm weather combined with rain that causes melting of snow at the lower elevations is not uncommon on the 'wet coast' where I live. It was just a few years ago when these conditions caused nearly all west coast ski hills to cease operations. Mt.. Washington on Van. Island as an example, which this winter has had well over 300 cm of snow, was forced to totally shutdown which resulted in only a few weeks of operations all winter. Putting any weather dependant venue in the Cypress Bowl (only recently was it renamed 'mountain') was a big gamble with it being only at 900 ft above sea level. They could not predict well enough in advance when the next El Nino would take place as it is nearly a certainty that the Cypress venue will melt in every El Nino winter.