Degreaser also got a nerf. Afterburn and regular damage are decreased. In comparison.
So it didn't actually get a nerf then. It just didn't receive the +10% damage that the flamethrower and phlog got.
Most of the balance changes I can get behind. The Quick-Fix is going to see a lot more use in CTF, since rocket-jumping soldiers and demomen can bring a medic with them deep into the enemy base. Sure, the uber-charge sucks, but you can't complain with a regular source of healing. The Sticky-Jumper and Quickfix could be a deadly combination, since it's a quick work-around to the fact that the Sticky-Jumper prevents you from carrying the intelligence. The medic can carry it around, and still be able to heal you and thus sticky-jump back to base.
EDIT: Also, all of those mysterious items? They're now reduced to ash. Craftable ash. Crafting four (4) ashes together makes one huge pile of ashes that you can use to get one of the new weapons from the update, and a burning crate. However, all of these ashes (along with the crates) will disappear after July 11
th or something like that.
EDIT2: FFFFFFFFFFFFF- I have three ashes remaining in my inventory right now. Gah. You can still get ashes from drops.
EDIT3: The Baby Face's Blaster is better than I thought. The boost seems to have no time limit, and is based off of how filled up the boost bar is, not on whether it's full or it. You lose it when you jump, but until then you'll be speeding around like a bullet. Plus with the increased accuracy, it's a snap getting boost. Using the pistol gets you boost as well.