....., it is likewise the responsibility of the elders/pastors of any Christian congregation to judge the actions of the "evil one" and to discipline that one.
Um, where does the Bible say this? No where. Speaking from a Christian viewpoint:
Elders/Pastors are nothing more than teachers who are supposed to be good Christian role models. That's it, nothing more.
Spiritual judgement and discipline do not belong to them, those aspects belong to God. Physical judgement and discipline do not belong to them, those aspects belong to the "higher authorities" which God allows.
So you see, nowhere in there does the Bible give Elders/Pastors any of this type of authority. Simply because THEY are supposed to be concentrating on TEACHING others to obey God and Christ, following the example of Christ.
The words of Luke 17:4 were spoken by Christ...I for one would do what he says and disregard any contradictory words from Elder/Pastor so and so.
The thing to remember is that JWs have downplayed Christ...if it were not for the Memorial, there would be no mention him. Therefore, how could they practice the words of Christ when they don't even consider him much?