In most of the world rapeseed oil is considered a neutral vegetable oil, and is definitely not strong flavoured. I don't know what you do to it in Australia, but it isn't being done most other places.
No idea, but canola has risks of naturally occuring erucic acid, and smells and tastes different to oil made by other plants/vegetables. Hard to describe. A bit like rancid ghee? Bitter and buttery. I will stick to olive oil and peanut oil and butter, thanks. They taste and smell much less unpleasant.