This thread has got out of hand. Nobody's saying don't use oil or even don't fry spices - that's ridiculous.
What Darthy's trying to say is 'could we leave the oil out of the base(only). Then the spices will still be fried in plenty of oil at the cooking time. This may enable him to get a better colour to his curry. And for me, for instance, it may allow me to use a bit LESS oil.