It took me quite awhile before I realised this wasn't quite the same as the Hive Power voted witnesses.
I'm not sure how much power (probably non-existent) I have for this different witness voting, but I've thrown in my vote. Hope that helps in it's own small way.
On hive-engine, the governance token is WORKERBEE and it needs to be staked. Unfortunately, most people don't have any of those :-)