In the following image, it actually showed 22 originally (in the Games listing too), but eventually it refreshed, and didn't show any private players, thus showing the players as 10. 22 minus the 12 private players.
On the website it's shown as 22 players w/ 13 private. Kai does not appear on the players listing on the website, assuming he's counted as the extra private person due to privacy settings, and friend stuff.
The next build will be a little better about keeping server info up to date with some minor polling, though I haven't changed how it updates players. I expect there will always be a little bit of discrepancy with the website, which doesn't overly concern me.
If you can get some more examples though, that would help.