Of course it's about the politics, and very little good science. That is the M.O. for whatever party is in power - it was very common during the past presidential administration regarding the teaching abstinence as sex eduaction, it was done before him regarding the AWB and other things, and it will be done by whomever comes after the current administration.
People generally, and those in power specifically, tend only to like the science that supports their current belief system, and wish to dispute, ignore (or suppress when it's well-done science) the findings that don't support their beliefs.
You only take one shot at a time - make it count.