Tell that to the guy who started the post then. And IO9 has posted lots of articles with political leanings to it. And they lean left and nothing gets said, so why say it now?
Who knows why Sam was chosen but Sam Anders was a construct of Calvin to punish Sam and make hime live with the humans. I guess Caprica could retacon the whole story. But BSG setup that the final five gave Cylons skinjobs.