My experience with the update, first match found a game quickly... a 4v5 in my favor. The map starts loading and then disconnects:
http://xboxclips.com/DestiniesReqium/d29d8d29-fa9c-421f-b90b-ca89fd848519
Next two games are found fairly quickly. I don't know without further testing, but it
seemed like online performance felt better (hit detection, etc). But after my second actual game, it refused to find any players. Just gets stuck on "Searching for players..." indefinitely. Backing out of a search resulted in a new bug, the background would fail to load and end up with just a black image:
http://xboxclips.com/DestiniesReqium/9c2c200f-518d-4fde-9d3a-ea327e0169b8
That bug was repeated after I quit the game and reloaded, and still failed to find players in multiple playlists and multiple attempts. And this was after the Server Side fix.
So my take away is, it doesn't seem to have done much of anything other then add a couple of new UI: "Joining Session" and "Retrieving Player Information."