Maybe, just maybe GC, was a driving force that Arena's even existed... Other than that, PVP was never ever balanced, nor will it ever be balanced. Such thing doesn't exist, because it cannot exist.
If you cannot grasp that, delete your game and resort to play with marbles. That doesn't require much insight..
Plus, you should write down your own statement, and cross check it with the next season, and the seasons to come...
I foresee how you'll suffocate on your own words.
If there's one awesome side effect from GC's departure, then it's not the impact on the game itself. It's how it will over time embarrass the idiotic unfounded hatred against him.
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Okay, here's the deal...
If you take the time and efforts to research the matter, you'll find some good information...
There are sites out there, that deal with employer qualities. Sites where employees leaving feedback about their experiences with the companies.
From there, in a nutshell, a condensed summary of Blizzard as employer:
Working at Blizzard is some fun environment. The overall feel is that the company's employee force is fairly young, and with that the maturity level is on the lower end of the scale. You need some sort of thick skin, to deal with sometimes not the most mature interactions amongst the staff.. Management/Supervisor quality varies greatly. And now for a very important thing... Progression within the employment.. There is very little room to further your career within the company.
The pay is good, but there are limitations on raises. You can only get to a certain point, and then you hit a brick wall...
If you want to further your income and career, you'll likely have to leave the company again.
This is, like I said a condensed version of the feedbacks left by employees...
GC was lead system designer at Blizzard.... Now he became lead game designer at Riot.
The title suggests a step up on the career ladder, and with that highly likely a significant step up on the paycheck and benefits scale as well..