No, it means "balanced". You shouldn't hide the ugly parts, but you should report on the good arguments of the opposition -- as well as the ugly parts of your own team. Both the left and the right have good arguments and bad arguments, and if you don't believe that, you're misinformed.
Partisans would much rather that they only hear about the ugly parts of the opposition, and never hear about the ugly parts of their own tribe.
Partisans would much rather that they only hear about the ugly parts of the opposition, and never hear about the ugly parts of their own tribe.