ItcheSrulik,
You say it’s a machlokes. I know that the R’ma in Y.D. 115 says that cholov akum makes keilim ossur. For someone who treats today’s milk as cholov akum, if the keilim are bnei yomon, they would pose a problem.
Of course, how to treat today’s milk in the USA is a machlokes, but but we are talking about someone who is machmir.
Is there someone who disagrees with the R’ma or says that keilim are more lenient when the food is a machlokes?