There is a very fundamental problem for the JW leadership buried in all of these types of debate. That is, having declared that they are God's messenger to mankind they can not respond to any question by saying "we don't know, every Christian will have to follow the dictates of their conscience." They have to have an answer.
This problem shows itself over an over again in the history of the org. Flu vaccine, blood, blood fractions, military service, voting, standing for the national anthem, drinking... I could go on.
Life for everybody would be much easier, but they have to have an answer.