TBF to the CDC, politics does matter, in the sense that good compliance with a reasonably effective program that people will accept is better than no compliance with a better one they won't, and even more so, if you can keep business on your side helping push folks toward compliance, that is better than having them fighting you in court over a marginally better program. Purists don't like to hear that "science" is subject to real-politik, but in the end public Policy always has to be driven by more than just pure science. Science can only tell you what the likely outcomes will be, how society judges the relative value/cost of those outcomes is in the end not a scientific question.