There is a lot of wrong information being posted here.
1: AoE in a group fight were absolutely over powered. I'm not talking theoretically here, statistically and in practice they were absolutely stronger in all group content cases. Given that all dungeons aside from SC and all PvP modes revolve around your entire team clustering at one location made this situation always true. That also means AoE always held a stronger position. A group of all AoE heavy classes against a group of all single target heavy classes would win an overwhelming majority of confrontations. Anyone who says otherwise is being intellectually dishonest or flat out lying.
2: This is something that should have been expected. Go back and check the posts regarding balance over the last few weeks and you'll see a massive increase in the number of complaints with Mages and Bourgeois. Their common trait is ranged AoE's. The most common Champions played are Greatsword and Spear, both having between 4-6 AoE's. Seeing the signs yet?
3: CHA never had any aggro effects in ROSE. There was a misleading tooltip from a very very early version of ROSE that mentioned aggro, but it was never actually implemented. The only effect CHA had prior to it's update last year and the buff update was it's effect on certain quest rewards.
4: A game can be balanced and be fun depending on your definition of balanced. In the game industry the commonly accepted definition or meaning of balance is when all classes / professions of equal tier and player competence function within less than 5% variance in combat effectiveness. What that means is that it doesn't matter if you play a Champion, Artisan or Raider; so long as you have everything gear related, passives etc of the same tier, you'd do damage roughly within 5% or earn roughly the same amount of points or progression. That's also assuming both players are equally proficient. Getting those measurements is incredibly hard yes, but it's not impossible. The DEV logs will show a much more useful collection of information than the forums ever could, so basing absolutely everything on posts alone is a bad method for determining how to balance the game.