The OP brings up Child Sexual Abuse (CSA) in something that has nothing to do with it. But from what I am reading, the Jehovah's Witnesses won another court battle to safeguard their right to build a kingdom hall and preach to their neighbors. Forgive me for asking, but what's the problem here?
I believe in freedom of speech (that includes preaching your none sense) and freedom of religion (that includes building your assembly hall, church, mosque, whatever). So, I don't see any problem here at all.
In fact, good for them! Winning this court battle protects the freedoms of everyone else in that country!