It is True and it is so sad.
Several reasons its seems.
Alliance forgot hoe to play AV I suggest this thread here to remember:
Winning Matches already reported when used.
Other reasons include maybe that Alliance got accustomed to winning with premades in a few minutes and now, without premades lost too much so that has settled in to just accept the loss and play for “Scrap Honor”.
Another more Cynical reason is apparently Horde infiltration. Some groups report Horde playing alliance characters and sabotaging every game to provoke Horde wins. I understand that this may happen, but I do not think it is a conspiracy personally but others think it is.