Hi CH,
There is 100% evidence that hydrogenated veg oil and trans fats are really bad for you.
Governments in the western world are trying to eliminate them from fast food and ready meals by legislation if necessary. I think McDonalds and KFC have managed to eliminate them.
You're right about everything in moderation but cooking and eating an oily curry 3 times a week using this stuff is far from being moderate. Basically any vegetable oil that is solid/waxy at room temperature has been hydrogenated unless it is a tropical plant oil like coconut or palm oil.
I don't want so say anymore as the information is all out there and it sounds negative in light of what you guys have just experienced and I think there will be a leap forward for cr0 in what information you have and will be posting.
For example I've never got that chilli cooking experience whereby you feel like coughing so I now know I have to get to grips with cooking (singeing) my spices better.
I don't think the use of veg ghee will be the deal breaker on what you have learnt.
I would say CH, don't throw away your recent purchase but experiment with that and also with butter ghee and normal veg oil and see how much difference it makes to the final taste.
Cheers,
Paul