The abundance of Canadian longs leads me to believe they were blinded by such a narrow perspective. It was very clear to anyone outside of Canada that the BB10 phones were really doing poorly. And if you can't sell these phones at launch after 2 years of hype and supposed pent up demand from loyal BB users then it would not end well.
This is why the short interest kept growing and rimtard were crying conspiracy and wickedness. Instead it was just observation of the obvious.