Facebook's approach here is too allow the praising of Nazi's as heroes while also maintaining the ban on showing the clearly Nazi imagery on their uniforms.
So anyone that is not already familiar with the Azov movement and it's doctrine may be convinced that they are simply freedom fighters protecting their nation, real honest heroes.
This shows perfectly why censorship is bad. By purging the Azov movements abhorrent rhetoric and imagery while allowing specific praise, Facebook has removed enough shades of grey to turn black to white, lies to truth, and evil to greatness. This is what people mean when they reference 1984, the truth is whatever you are told it is today.
But the malleability of truth is not the real risk here. The real risk is that the Azov movement succeeds in their defence of Ukraine, that those that hold them up as heroes begin to believe they can't be all bad, that nobody that is a hero can be a real Nazi, begin to listen more intently to the Azov movements hate. The real risk is that by hiding evil you create more evil, not less.