Preheat and homogenization were not testing in these processes. Both are steps used in most US milk that would likely inactivate the virus. Moral of the story is still you are an idiot if you are drinking raw milk.
Fragments of the virus that are being found in about 20% of all milk sampled. These fragments have not been shown to be enough to make anyone sick. The fact that we're finding fragments and not intact viruses in store bought milk is a good indication that the various processes used for milk in most locations is doing the job it was intended to do.
And most important of all: This is the current state of evidence gathered on this topic, that state could change with various factors at play and/or the addition of new evidence. Because apparently for some people they have forgotten that "things change as time progresses".