Yes, of course. I've seen that number decrease over the decades, but it's obviously not zero (and probably never will be).
It's not clear that the presence of those people on the earth requires official work channels to be a political discussion free-for-all. I spend time on a fairly small number of discussion sites. Invariably, the ones with the highest signal-to-noise ratio are the ones which ban gratuitous political discussion (including this one [Off-Topic: Most stories about politics, or crime, or sports, unless they're evidence of some interesting new phenomenon. ]).
Political discussion (like religious discussion) tends to generate more heat than light and I don't begrudge a company wanting to focus official work channels on, well, work.
