Yea. I think they confuse "keeping away" vs. "informing policy". Considering the technological age we live in, and the amount of money modern countries spend on public health, healthcare, research, etc it'd be pretty mad to say that you shouldnt use proven data to make policy decisions (eg the nonsense vaccine controversy). Obviously, politics shouldn't affect the process of science (which thankfully now is a global process, making manipulation by any one or few governments not very effective - but of course people are people and nothing will be perfect).
I don't know how science can affect politics even if it wanted to, unless he means scientist shouldnt rebuke a politician when they lie about a piece of research. But that's just your right as a citizen and people have a right not to listen to it.