This type of grief, as well as controlled creatures getting stuck on aggro even when they're set to defensive, is reported weeks before it is released to the shards, so this was a very well expected result. After they released it in its current form, I initially thought it was intentional and they wanted to make the players with the same alignment a group, thus allowing to attack the creatures of the opposing alignment, in an effort to make your side called to call to arms. However, I think you can attack any controlled creature regardless of its alignment, so if there is no other explanation, I'm not sure why they haven't fixed that when it is reported.