I really do appreciate your explanations and trying to educate me on this matter
@OVERKILL. I tend to agree with most of the things you pointed out.
I'd like to also point out the following:
When you develop and test additive packages, you can also outsource all these studies to a third party. I don't think it's a requirement for additive company to own their lab (maybe it is and I'm not aware of it). In my field of research, not all the drug formulators, formulate everything in house and test in house in fact in my current company which has the abilities to do many tests and house yet, we send a lot of our studies to China and India for formulation and testing believe me or not it's much cheaper to do that. Also the current company I work for, is loaded with cash.
We can speculate many things but at the end of the day I believe money and cost savings play an important role in the overall picture.