I do not do well when someone tells me not to think about how something works. I need to know how it works so I know what is going on. Them telling to stop gaining knowledge on how it works and what they are doing is not something I would agree to do - I did not agree to do it and in fact got a second one to explain how it worked on top of the books and classes I took.
It is all too convenient for them to keep clients in the dark. So I do not look at it as obsessing, I look at it as good self care and taking reasonable steps to not put myself in danger.