GW has released the list of seasonal bundles! https://www.warhammer-community.com...ksoHsrP6c3V5XUHbOAAUzvQeaJL87c+Qj9Rf9L558QQQ4
Essentially some people who don't really know about the tau think it's communism as explained by cold war era western propaganda. Neither of which are accurate representations of the tau nor of communism.
Pretty much - Tau are the closest thing to good guys in 40K, while communism is as evil as nazism, so that's one inaccuracy straight away.