Current charts beg to differ.
There is advantage for allies in 2s, but 1s and 3s are balanced and 4s belong, as usual, to axis.
No - stop spreading this smut.
Every mode is allied favorable right now, even 4s.
I just hosted a tournament of 8 of the best 4v4 teams and every single match was won by the allies by a huge margin.
If you actually cared about this game and wanted a balanced game you would stop this nonsense.