I'm certain I'm not confusing it. He told me that although R Moshe says you don't need to be choshesh that a Jew manufactured everything, R Reuven said the metzius changed. That teshuva would be why you can't buy from a goy and make bracha.
As I suspected you are talking about an unrelated issue of not making a bracha when it started off being Jewish owned.
My point was that according to the reasoning of the OK, even if you know for sure that it was manufactured by a goy you should not be able to make a bracha, or even need to toivel it at all for that matter.