The Purpose of a Rework
There is a discrepancy in expectation between Riot and it's players in regards to the effect a rework is supposed to have on a champion and by proxy what class scale reworks are supposed to have on a role(juggernauts, marksman, mages).
Firstly let's talk about individual reworks. The goal is to create more options for the balance team to work on to control an individual champions game state and to create a strategic niche for each champ. The goal IS NOT to make that champion stronger. Now that may be a side effect, especially if that champion was intentionally left in a underpowered state due to the relative power in their kit. Veteran players will remember revive eve who was nerfed to the point where she was considered a troll pick for 2 seasons until riot revisited her kit. For newer players, Poppy was the same prior to update. Aatrox and Yorick are currently in a deliberately underpowered state, pending eventual updates.
Now when riot does a class update the goal is to accomplish the same thing, but the update can be expanded to itemization and larger scale changes that ultimately impact the general game state on a larger scale. These changes allow riot to expand upon concepts that were experimented with in individual updates but with a much more substantial impact. With the Poppy release they experimented with anti mobility abilities. For those that have been paying attention Cassio's rework is experimenting with the same thing. I have no doubt that these are the beginning of changes being implemented to combat the Mobility Creep that the boards have been bitching about for years. The best part is that these changes are combating problems that have pervaded the game as a whole BY creating strategic niches for different champions. And this is only one element being worked on in the mage update. Riot is redefining the purpose and power of mages at all levels in the game. Just like individual reworks though, the goal is not to Buff an entire class of champions. Rather it's to give them an identity that no other champ can replicate exactly.
, balanced
champ is reworked