I honestly can't think of any way these last few updates were any worse than the updates we've gotten since 2012. If anything, these updates are at a disadvantage because the pool of weapons and hats is already at it's maximum. By this point in the game's history there's nothing besides a new comp gamemode and new maps which would meaningfully impact the game compared to previous TF2 updates, where simply giving the Soldier a new rocket launcher was a huge deal. It's probably why Valve finally created the map workshop in the first place - TF2 needed it.
Hopefully future updates will set the stage for more innovation in TF2, which this game needs, thanks to Overwatch.