Going to keep this short and simple. They changed 2v2 arena because it was overpopulated and unbalanced. Not many people were playing 3v3 and 5v5 in comparison to 2v2.
Now that they will changed 2v2 wont that make everyone quit playing it and make the exact opposite ?
No one will play 2v2, 3v3 will be most populated and 5v5 will still be eating dust.

I guess it is time to get my ass handed to RMP. Such a awsome "balance" you did developers

Locking this as there is no need for multiple threads on the same topic, and we already have quite a few threads on the 2v2 changes.