I think there's a perception of bad taste with canola oil, but in my experience, this is due to cooks inexperienced in cooking with canola oil. There are temperature and duration changes that must be taken to account. Some recipes need adjusting and calibration and that takes a bit of experimentation. Not everyone has the patience for that or is willing to research the differences.
http://www.livestrong.com/article/459116-can-you-replace-veg...
I think there's a perception of bad taste with canola oil, but in my experience, this is due to cooks inexperienced in cooking with canola oil. There are temperature and duration changes that must be taken to account. Some recipes need adjusting and calibration and that takes a bit of experimentation. Not everyone has the patience for that or is willing to research the differences.