Scientific results and associated recommendations do not always align on the same issues. That’s part of the beauty of academia. In cases like these, some people take sides, assuming different opinions.
It is interesting to think of personal science: my science versus your science. This thought coming from arguments about the relativity of truth and morality: ideas that speak of truth as truths that may vary from person to person — that my truth about a certain issue could be different from yours.
For differing ideas on the same issue and in the same domain to be true at the same time, however contadictory, truth has to be personal. In the same vein, for contradictory scientific opinions to be valid at the same time, they have to be personal. But in the case of science, this sounds particularly funny — almost unscientific.