Said another way, while it is possible for science to be less political, it explicitly requires that the questions being posed are as far removed from policy decisions as possible (i.e., useless). I would challenge the author to articulate an alternative in which [(a) scientists desire to have a positive impact on society (beyond simply increasing knowledge) and (b) they recognize the limitations of their capabilities] but do not need to think carefully about how the results of a resource or technical limitation of their work might lead it to be misapplied to bad policy. Saying "remember science is political" is no different than saying "remember that if you decide to always check PSA levels you'll mess up more people's urinogenital loves with unnecessary tests than you'll save from cancer.
Note: many scientists (like me!) gravitate to "basic" science so they won't have to worry. But I don't think that makes us better.