It was buggy to begin with hence the update already if the wizard was smart I would wait a couple of months until they finished getting all the patches and bugs fixed before pushing out another trainer or we are going to be back like WEE where they were pushing out updates almost every other day and couldn't keep up with the demand of updates to the trainer. This game came out way to fast with beta bugs that weren't fixed and now are finally getting addressed.
Steam works like this -
You can turn off automatic updates for any game in your library and they won't update ever...
BUT if you ever play that game again it will turn on automatic updates for that game again.
So basically it's pointless to use it unless you like having a game on your hard drive that you're never going to play.