As usual, we never enable updates for .0 releases, because there are always important regressions that we need to fix first, before sending them to everyone.
I just checked on my Mac (Latest OSX) and VLC 2.1.4 and it's working (I was 1 version behind it looks like)
Well no, the new version is 2.2.0 and the version before was 2.1.5 so actualy you got the previous update with the updater.
I'm sorry, I meant "One version behind was was the newest before 2.2.0" I realise that was confusing now. I said it in case there was a bug in 2.1.5's updater that was not present in 2.1.4's.