Well I guess my take on the article comes down to this: Someone decides to sell something. They produce all this wild claims about it's health benefits. Then someone else looks at the glee circus, and rightfully smells a rat. Unfortunately the rat smellers then often accept a bunch of counter claims just as uncritically and start screaming about how the salesmen are black cloacked conspirators trying to kill small babies.
Bad fats in order of badness:
Good fats in order of goodness:
Omega-3 fatty acids
Trans fats are a result of hydrogenation - heating the oil in the presence of a platinum catalyst and excess hydrogen. It doesn't happen from just heating an oil as far as I know. I'm pretty skeptical of their claim that non-hydrogenated canola has any appreciable amount of trans fats. It does have some mono unsaturated fats. Olive oil clearly has more monounsaturated fats, so I think it is the most healthy of the cooking oils.
Basically my take on nutrition is this. It's complex and fairly poorly understood. Most claims about nutrition are exaggerated and are made by axe grinders. Your best bet is to try to minimize the amount of processing that's done to your foods and eat as varied a diet as possible. Don't stop nursing your baby and try to raise it on a diet of straight canola oil. Duh. Absolutely I think you should never put anything in your mouth that contains the word "hydrogenated" any where in the ingredients. Eating cows that were jammed into a pen so tight they couldn't move and then fed corn all day - probably not great for you. Keep it to a minimum. If you can use olive oil in your cooking, great. I think canola is generally better than corn, soy, or peanut. Coconut has a fair amount of saturated fats, but it has the bonus of being solid at room temp without hydrogenation and of being able to resist high cooking temps.
Do you know of ANY oil that can be safely consumed that has at least a 1:4 Omega3 to Omega6 ratio?
No. Looks like flax is the highest and it's 3:1. Might not be a bad idea to add some flax seed to your diet if your super worried about that. Personally I'd just eat a piece of salmon every now and then and call it good.