It's simply not the BBC's job to tell people who to support and who to condemn - who are the good guys and who are the bad guys.
I miss when this was the standard for news. Now most (e: major) outlets don't even try to pretend they have no bias and instead push a subjective point. Even when I agree with the point, I don't like it when my "news" pushes it instead of just, you know, reporting.